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53235032401 = 285718633193
BaseRepresentation
bin110001100101000011…
…100010000101010001
312002102001002211210201
4301211003202011101
51333011132014101
640242243255201
73563133211045
oct614503420521
9162361084721
1053235032401
1120638873851
12a39837a501
135035055c95
142810238025
1515b88b2e01
hexc650e2151

53235032401 has 4 divisors (see below), whose sum is σ = 53253668452. Its totient is φ = 53216396352.

The previous prime is 53235032287. The next prime is 53235032407. The reversal of 53235032401 is 10423053235.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 46246072401 + 6988960000 = 215049^2 + 83600^2 .

It is a cyclic number.

It is not a de Polignac number, because 53235032401 - 223 = 53226643793 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53235032401.

It is not an unprimeable number, because it can be changed into a prime (53235032407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9313740 + ... + 9319453.

It is an arithmetic number, because the mean of its divisors is an integer number (13313417113).

Almost surely, 253235032401 is an apocalyptic number.

It is an amenable number.

53235032401 is a deficient number, since it is larger than the sum of its proper divisors (18636051).

53235032401 is a wasteful number, since it uses less digits than its factorization.

53235032401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18636050.

The product of its (nonzero) digits is 10800, while the sum is 28.

Adding to 53235032401 its reverse (10423053235), we get a palindrome (63658085636).

The spelling of 53235032401 in words is "fifty-three billion, two hundred thirty-five million, thirty-two thousand, four hundred one".

Divisors: 1 2857 18633193 53235032401