625690894 has 4 divisors (see below), whose sum is σ = 938536344. Its totient is φ = 312845446.

The previous prime is 625690861. The next prime is 625690903. The reversal of 625690894 is 498096526.

It is a semiprime because it is the product of two primes.

It is a congruent 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 as a sum of consecutive naturals, namely, 156422722 + ... + 156422725.

It is an arithmetic number, because the mean of its divisors is an integer number (234634086).

Almost surely, 2^625690894 is an apocalyptic number.

625690894 is a deficient number, since it is larger than the sum of its proper divisors (312845450).

625690894 is a wasteful number, since it uses less digits than its factorization.

625690894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312845449.

The product of its (nonzero) digits is 933120, while the sum is 49.

The square root of 625690894 is about 25013.8140634330. The cubic root of 625690894 is about 855.3029005559.

The spelling of 625690894 in words is "six hundred twenty-five million, six hundred ninety thousand, eight hundred ninety-four".