557145156 has 24 divisors (see below), whose sum is σ = 1306609920. Its totient is φ = 184771552.

The previous prime is 557145137. The next prime is 557145157. The reversal of 557145156 is 651541755.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (557145157) 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, 115476 + ... + 120203.

It is an arithmetic number, because the mean of its divisors is an integer number (54442080).

Almost surely, 2^557145156 is an apocalyptic number.

It is an amenable number.

557145156 is an abundant number, since it is smaller than the sum of its proper divisors (749464764).

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

557145156 is a wasteful number, since it uses less digits than its factorization.

557145156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235883 (or 235881 counting only the distinct ones).

The product of its digits is 105000, while the sum is 39.

The square root of 557145156 is about 23603.9224706403. The cubic root of 557145156 is about 822.8540031881.

The spelling of 557145156 in words is "five hundred fifty-seven million, one hundred forty-five thousand, one hundred fifty-six".