25624632406 has 32 divisors (see below), whose sum is σ = 42238959840. Its totient is φ = 11604773376.

The previous prime is 25624632391. The next prime is 25624632427. The reversal of 25624632406 is 60423642652.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 260376 + ... + 345028.

It is an arithmetic number, because the mean of its divisors is an integer number (1319967495).

Almost surely, 2^25624632406 is an apocalyptic number.

25624632406 is a deficient number, since it is larger than the sum of its proper divisors (16614327434).

25624632406 is a wasteful number, since it uses less digits than its factorization.

25624632406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85008.

The product of its (nonzero) digits is 414720, while the sum is 40.

The spelling of 25624632406 in words is "twenty-five billion, six hundred twenty-four million, six hundred thirty-two thousand, four hundred six".