25355231139 has 16 divisors (see below), whose sum is σ = 38997635328. Its totient is φ = 14353293792.

The previous prime is 25355231117. The next prime is 25355231189. The reversal of 25355231139 is 93113255352.

It is a happy number.

It is not a de Polignac number, because 25355231139 - 2⁸ = 25355230883 is a prime.

It is a super-3 number, since 3×25355231139³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 25355231097 and 25355231106.

It is not an unprimeable number, because it can be changed into a prime (25355231189) 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, 5639772 + ... + 5644265.

It is an arithmetic number, because the mean of its divisors is an integer number (2437352208).

Almost surely, 2^25355231139 is an apocalyptic number.

25355231139 is a deficient number, since it is larger than the sum of its proper divisors (13642404189).

25355231139 is a wasteful number, since it uses less digits than its factorization.

25355231139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11284154.

The product of its digits is 121500, while the sum is 39.

The spelling of 25355231139 in words is "twenty-five billion, three hundred fifty-five million, two hundred thirty-one thousand, one hundred thirty-nine".