25641514034 has 16 divisors (see below), whose sum is σ = 39707149056. Its totient is φ = 12405884400.

The previous prime is 25641514009. The next prime is 25641514037. The reversal of 25641514034 is 43041514652.

It is a junction number, because it is equal to n+sod(n) for n = 25641513985 and 25641514003.

It is not an unprimeable number, because it can be changed into a prime (25641514037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 865649 + ... + 894779.

It is an arithmetic number, because the mean of its divisors is an integer number (2481696816).

Almost surely, 2^25641514034 is an apocalyptic number.

25641514034 is a deficient number, since it is larger than the sum of its proper divisors (14065635022).

25641514034 is a wasteful number, since it uses less digits than its factorization.

25641514034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43361.

The product of its (nonzero) digits is 57600, while the sum is 35.

The spelling of 25641514034 in words is "twenty-five billion, six hundred forty-one million, five hundred fourteen thousand, thirty-four".