25211962290 has 32 divisors (see below), whose sum is σ = 62595218880. Its totient is φ = 6491355584.

The previous prime is 25211962283. The next prime is 25211962291. The reversal of 25211962290 is 9226911252.

It is not an unprimeable number, because it can be changed into a prime (25211962291) 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, 14488764 + ... + 14490503.

It is an arithmetic number, because the mean of its divisors is an integer number (1956100590).

Almost surely, 2^25211962290 is an apocalyptic number.

25211962290 is an abundant number, since it is smaller than the sum of its proper divisors (37383256590).

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

25211962290 is a wasteful number, since it uses less digits than its factorization.

25211962290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28979306.

The product of its (nonzero) digits is 38880, while the sum is 39.

The spelling of 25211962290 in words is "twenty-five billion, two hundred eleven million, nine hundred sixty-two thousand, two hundred ninety".