557961242 has 8 divisors (see below), whose sum is σ = 837119232. Its totient is φ = 278921500.

The previous prime is 557961241. The next prime is 557961311. The reversal of 557961242 is 242169755.

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

It is a super-2 number, since 2×557961242² = 622641495148365128, 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 557961242.

It is not an unprimeable number, because it can be changed into a prime (557961241) 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, 16634 + ... + 37317.

It is an arithmetic number, because the mean of its divisors is an integer number (104639904).

Almost surely, 2^557961242 is an apocalyptic number.

557961242 is a deficient number, since it is larger than the sum of its proper divisors (279157990).

557961242 is a wasteful number, since it uses less digits than its factorization.

557961242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59124.

The product of its digits is 151200, while the sum is 41.

The square root of 557961242 is about 23621.2032293023. The cubic root of 557961242 is about 823.2555694100.

The spelling of 557961242 in words is "five hundred fifty-seven million, nine hundred sixty-one thousand, two hundred forty-two".