13525643031 has 16 divisors (see below), whose sum is σ = 18999446400. Its totient is φ = 8535271968.

The previous prime is 13525643029. The next prime is 13525643063. The reversal of 13525643031 is 13034652531.

It is not a de Polignac number, because 13525643031 - 2¹ = 13525643029 is a prime.

It is a super-2 number, since 2×13525643031² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13525642983 and 13525643001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13525643731) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32296 + ... + 167613.

It is an arithmetic number, because the mean of its divisors is an integer number (1187465400).

Almost surely, 2^13525643031 is an apocalyptic number.

13525643031 is a deficient number, since it is larger than the sum of its proper divisors (5473803369).

13525643031 is a wasteful number, since it uses less digits than its factorization.

13525643031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201118.

The product of its (nonzero) digits is 32400, while the sum is 33.

The spelling of 13525643031 in words is "thirteen billion, five hundred twenty-five million, six hundred forty-three thousand, thirty-one".