25210120002 has 32 divisors (see below), whose sum is σ = 52620226560. Its totient is φ = 8036817360.

The previous prime is 25210119989. The next prime is 25210120003. The reversal of 25210120002 is 20002101252.

It is not an unprimeable number, because it can be changed into a prime (25210120003) 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, 1739727 + ... + 1754157.

It is an arithmetic number, because the mean of its divisors is an integer number (1644382080).

Almost surely, 2^25210120002 is an apocalyptic number.

25210120002 is an abundant number, since it is smaller than the sum of its proper divisors (27410106558).

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

25210120002 is a wasteful number, since it uses less digits than its factorization.

25210120002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27118.

The product of its (nonzero) digits is 80, while the sum is 15.

Adding to 25210120002 its reverse (20002101252), we get a palindrome (45212221254).

The spelling of 25210120002 in words is "twenty-five billion, two hundred ten million, one hundred twenty thousand, two".