25424520322 has 4 divisors (see below), whose sum is σ = 38136780486. Its totient is φ = 12712260160.

The previous prime is 25424520311. The next prime is 25424520347. The reversal of 25424520322 is 22302542452.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12943385361 + 12481134961 = 113769^2 + 111719^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6356130079 + ... + 6356130082.

Almost surely, 2^25424520322 is an apocalyptic number.

25424520322 is a deficient number, since it is larger than the sum of its proper divisors (12712260164).

25424520322 is a wasteful number, since it uses less digits than its factorization.

25424520322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12712260163.

The product of its (nonzero) digits is 38400, while the sum is 31.

The spelling of 25424520322 in words is "twenty-five billion, four hundred twenty-four million, five hundred twenty thousand, three hundred twenty-two".