25004552322 has 64 divisors (see below), whose sum is σ = 52462642176. Its totient is φ = 7935252480.

The previous prime is 25004552299. The next prime is 25004552329. The reversal of 25004552322 is 22325540052.

It is a self number, because there is not a number n which added to its sum of digits gives 25004552322.

It is not an unprimeable number, because it can be changed into a prime (25004552329) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5877148 + ... + 5881400.

It is an arithmetic number, because the mean of its divisors is an integer number (819728784).

Almost surely, 2^25004552322 is an apocalyptic number.

25004552322 is an abundant number, since it is smaller than the sum of its proper divisors (27458089854).

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

25004552322 is a wasteful number, since it uses less digits than its factorization.

25004552322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4795.

The product of its (nonzero) digits is 24000, while the sum is 30.

The spelling of 25004552322 in words is "twenty-five billion, four million, five hundred fifty-two thousand, three hundred twenty-two".