25145634630 has 16 divisors (see below), whose sum is σ = 60349523184. Its totient is φ = 6705502560.

The previous prime is 25145634629. The next prime is 25145634671. The reversal of 25145634630 is 3643654152.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 419093881 + ... + 419093940.

It is an arithmetic number, because the mean of its divisors is an integer number (3771845199).

Almost surely, 2^25145634630 is an apocalyptic number.

25145634630 is an abundant number, since it is smaller than the sum of its proper divisors (35203888554).

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

25145634630 is a wasteful number, since it uses less digits than its factorization.

25145634630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838187831.

The product of its (nonzero) digits is 259200, while the sum is 39.

The spelling of 25145634630 in words is "twenty-five billion, one hundred forty-five million, six hundred thirty-four thousand, six hundred thirty".