388125557 has 8 divisors (see below), whose sum is σ = 398442240. Its totient is φ = 377849440.

The previous prime is 388125553. The next prime is 388125571. The reversal of 388125557 is 755521883.

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

It is not a de Polignac number, because 388125557 - 2² = 388125553 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388125553) 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, 9758 + ... + 29520.

It is an arithmetic number, because the mean of its divisors is an integer number (49805280).

Almost surely, 2^388125557 is an apocalyptic number.

It is an amenable number.

388125557 is a deficient number, since it is larger than the sum of its proper divisors (10316683).

388125557 is a wasteful number, since it uses less digits than its factorization.

388125557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20283.

The product of its digits is 336000, while the sum is 44.

The square root of 388125557 is about 19700.9024412589. The cubic root of 388125557 is about 729.4419686057.

The spelling of 388125557 in words is "three hundred eighty-eight million, one hundred twenty-five thousand, five hundred fifty-seven".