25161013650 has 24 divisors (see below), whose sum is σ = 62399314224. Its totient is φ = 6709603600.

The previous prime is 25161013649. The next prime is 25161013667. The reversal of 25161013650 is 5631016152.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 83869896 + ... + 83870195.

It is an arithmetic number, because the mean of its divisors is an integer number (2599971426).

Almost surely, 2^25161013650 is an apocalyptic number.

25161013650 is an abundant number, since it is smaller than the sum of its proper divisors (37238300574).

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

25161013650 is a wasteful number, since it uses less digits than its factorization.

25161013650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167740106 (or 167740101 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The spelling of 25161013650 in words is "twenty-five billion, one hundred sixty-one million, thirteen thousand, six hundred fifty".