657725334 has 48 divisors (see below), whose sum is σ = 1565834688. Its totient is φ = 183547728.

The previous prime is 657725311. The next prime is 657725351. The reversal of 657725334 is 433527756.

657725334 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×657725334² = 865205229970823112, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13372 + ... + 38655.

It is an arithmetic number, because the mean of its divisors is an integer number (32621556).

Almost surely, 2^657725334 is an apocalyptic number.

657725334 is an abundant number, since it is smaller than the sum of its proper divisors (908109354).

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

657725334 is a wasteful number, since it uses less digits than its factorization.

657725334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52089 (or 52082 counting only the distinct ones).

The product of its digits is 529200, while the sum is 42.

The square root of 657725334 is about 25646.1563201974. The cubic root of 657725334 is about 869.6573865628.

The spelling of 657725334 in words is "six hundred fifty-seven million, seven hundred twenty-five thousand, three hundred thirty-four".