557390007 has 6 divisors (see below), whose sum is σ = 805118912. Its totient is φ = 371593332.

The previous prime is 557390003. The next prime is 557390021. The reversal of 557390007 is 700093755.

It is not a de Polignac number, because 557390007 - 2² = 557390003 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (557390003) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30966103 + ... + 30966120.

Almost surely, 2^557390007 is an apocalyptic number.

557390007 is a deficient number, since it is larger than the sum of its proper divisors (247728905).

557390007 is a wasteful number, since it uses less digits than its factorization.

557390007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61932229 (or 61932226 counting only the distinct ones).

The product of its (nonzero) digits is 33075, while the sum is 36.

The square root of 557390007 is about 23609.1085600452. The cubic root of 557390007 is about 822.9745266076.

The spelling of 557390007 in words is "five hundred fifty-seven million, three hundred ninety thousand, seven".