53020526436 has 18 divisors (see below), whose sum is σ = 134024108582. Its totient is φ = 17673508800.

The previous prime is 53020526431. The next prime is 53020526459. The reversal of 53020526436 is 63462502035.

53020526436 is a `hidden beast` number, since 5 + 3 + 0 + 2 + 0 + 5 + 2 + 643 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 31066177536 + 21954348900 = 176256^2 + 148170^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×53020526436² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1472792401 = 53020526436 / (5 + 3 + 0 + 2 + 0 + 5 + 2 + 6 + 4 + 3 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 53020526436.

It is not an unprimeable number, because it can be changed into a prime (53020526431) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 736396165 + ... + 736396236.

Almost surely, 2^53020526436 is an apocalyptic number.

It is an amenable number.

53020526436 is an abundant number, since it is smaller than the sum of its proper divisors (81003582146).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53020526436 is a wasteful number, since it uses less digits than its factorization.

53020526436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1472792411 (or 1472792406 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 36.

The spelling of 53020526436 in words is "fifty-three billion, twenty million, five hundred twenty-six thousand, four hundred thirty-six".