625642 has 8 divisors (see below), whose sum is σ = 968832. Its totient is φ = 302700.

The previous prime is 625637. The next prime is 625643. The reversal of 625642 is 246526.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (625643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4984 + ... + 5107.

It is an arithmetic number, because the mean of its divisors is an integer number (121104).

2⁶²⁵⁶⁴² is an apocalyptic number.

625642 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

625642 is a deficient number, since it is larger than the sum of its proper divisors (343190).

625642 is a wasteful number, since it uses less digits than its factorization.

625642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10124.

The product of its digits is 2880, while the sum is 25.

The square root of 625642 is about 790.9753472770. The cubic root of 625642 is about 85.5280621041.

The spelling of 625642 in words is "six hundred twenty-five thousand, six hundred forty-two".