625238994 has 16 divisors (see below), whose sum is σ = 1256827968. Its totient is φ = 207354672.

The previous prime is 625238983. The next prime is 625239001. The reversal of 625238994 is 499832526.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 263302 + ... + 265665.

It is an arithmetic number, because the mean of its divisors is an integer number (78551748).

Almost surely, 2^625238994 is an apocalyptic number.

625238994 is an abundant number, since it is smaller than the sum of its proper divisors (631588974).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

625238994 is a wasteful number, since it uses less digits than its factorization.

625238994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529169.

The product of its digits is 933120, while the sum is 48.

The square root of 625238994 is about 25004.7794231423. The cubic root of 625238994 is about 855.0969391814.

It can be divided in two parts, 62523 and 8994, that added together give a palindrome (71517).

The spelling of 625238994 in words is "six hundred twenty-five million, two hundred thirty-eight thousand, nine hundred ninety-four".