557158780 has 24 divisors (see below), whose sum is σ = 1173784752. Its totient is φ = 222148992.

The previous prime is 557158747. The next prime is 557158787. The reversal of 557158780 is 87851755.

It is a happy number.

It is a super-2 number, since 2×557158780² = 620851812262176800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 557158780.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (557158787) 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, 38242 + ... + 50761.

It is an arithmetic number, because the mean of its divisors is an integer number (48907698).

Almost surely, 2^557158780 is an apocalyptic number.

It is an amenable number.

557158780 is an abundant number, since it is smaller than the sum of its proper divisors (616625972).

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

557158780 is a wasteful number, since it uses less digits than its factorization.

557158780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89325 (or 89323 counting only the distinct ones).

The product of its (nonzero) digits is 392000, while the sum is 46.

The square root of 557158780 is about 23604.2110649774. The cubic root of 557158780 is about 822.8607102802.

The spelling of 557158780 in words is "five hundred fifty-seven million, one hundred fifty-eight thousand, seven hundred eighty".