625606402 has 4 divisors (see below), whose sum is σ = 938409606. Its totient is φ = 312803200.

The previous prime is 625606379. The next prime is 625606427. The reversal of 625606402 is 204606526.

625606402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 515335401 + 110271001 = 22701^2 + 10501^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156401599 + ... + 156401602.

Almost surely, 2^625606402 is an apocalyptic number.

625606402 is a deficient number, since it is larger than the sum of its proper divisors (312803204).

625606402 is a wasteful number, since it uses less digits than its factorization.

625606402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312803203.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 625606402 is about 25012.1250996392. The cubic root of 625606402 is about 855.2643993799.

The spelling of 625606402 in words is "six hundred twenty-five million, six hundred six thousand, four hundred two".