388625057 has 4 divisors (see below), whose sum is σ = 390173616. Its totient is φ = 387076500.

The previous prime is 388625053. The next prime is 388625071. The reversal of 388625057 is 750526883.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 388625057 - 2² = 388625053 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 388624999 and 388625017.

It is not an unprimeable number, because it can be changed into a prime (388625051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 773903 + ... + 774404.

It is an arithmetic number, because the mean of its divisors is an integer number (97543404).

Almost surely, 2^388625057 is an apocalyptic number.

It is an amenable number.

388625057 is a deficient number, since it is larger than the sum of its proper divisors (1548559).

388625057 is a wasteful number, since it uses less digits than its factorization.

388625057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1548558.

The product of its (nonzero) digits is 403200, while the sum is 44.

The square root of 388625057 is about 19713.5754494206. The cubic root of 388625057 is about 729.7547540476.

The spelling of 388625057 in words is "three hundred eighty-eight million, six hundred twenty-five thousand, fifty-seven".