557561742 has 16 divisors (see below), whose sum is σ = 1115741952. Its totient is φ = 185750840.

The previous prime is 557561737. The next prime is 557561759. The reversal of 557561742 is 247165755.

It is a happy number.

It is a super-2 number, since 2×557561742² = 621750192284149128, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 557561694 and 557561703.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13608 + ... + 36059.

It is an arithmetic number, because the mean of its divisors is an integer number (69733872).

Almost surely, 2^557561742 is an apocalyptic number.

557561742 is an abundant number, since it is smaller than the sum of its proper divisors (558180210).

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

557561742 is a wasteful number, since it uses less digits than its factorization.

557561742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51543.

The product of its digits is 294000, while the sum is 42.

The square root of 557561742 is about 23612.7453295884. The cubic root of 557561742 is about 823.0590389574.

The spelling of 557561742 in words is "five hundred fifty-seven million, five hundred sixty-one thousand, seven hundred forty-two".