625842506 has 16 divisors (see below), whose sum is σ = 964866816. Its totient is φ = 304305456.

The previous prime is 625842499. The next prime is 625842509. The reversal of 625842506 is 605248526.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 625842506.

It is not an unprimeable number, because it can be changed into a prime (625842509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6446 + ... + 35961.

It is an arithmetic number, because the mean of its divisors is an integer number (60304176).

Almost surely, 2^625842506 is an apocalyptic number.

625842506 is a deficient number, since it is larger than the sum of its proper divisors (339024310).

625842506 is a wasteful number, since it uses less digits than its factorization.

625842506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42613.

The product of its (nonzero) digits is 115200, while the sum is 38.

The square root of 625842506 is about 25016.8444452933. The cubic root of 625842506 is about 855.3719781746.

The spelling of 625842506 in words is "six hundred twenty-five million, eight hundred forty-two thousand, five hundred six".