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53113501 = 721083949
BaseRepresentation
bin1100101010011…
…1001010011101
310200221110000201
43022213022131
5102044113001
65134223501
71213312600
oct312471235
9120843021
1053113501
1127a87a61
1215954b91
13b00860c
1470a8337
1549e2501
hex32a729d

53113501 has 6 divisors (see below), whose sum is σ = 61785150. Its totient is φ = 45525816.

The previous prime is 53113499. The next prime is 53113519. The reversal of 53113501 is 10531135.

It can be written as a sum of positive squares in only one way, i.e., 44876601 + 8236900 = 6699^2 + 2870^2 .

It is not a de Polignac number, because 53113501 - 21 = 53113499 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53113591) 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, 541926 + ... + 542023.

It is an arithmetic number, because the mean of its divisors is an integer number (10297525).

Almost surely, 253113501 is an apocalyptic number.

It is an amenable number.

53113501 is a deficient number, since it is larger than the sum of its proper divisors (8671649).

53113501 is a wasteful number, since it uses less digits than its factorization.

53113501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1083963 (or 1083956 counting only the distinct ones).

The product of its (nonzero) digits is 225, while the sum is 19.

The square root of 53113501 is about 7287.9010009741. The cubic root of 53113501 is about 375.8965239816.

Adding to 53113501 its reverse (10531135), we get a palindrome (63644636).

The spelling of 53113501 in words is "fifty-three million, one hundred thirteen thousand, five hundred one".

Divisors: 1 7 49 1083949 7587643 53113501