557248626 has 32 divisors (see below), whose sum is σ = 1350907200. Its totient is φ = 168863040.

The previous prime is 557248597. The next prime is 557248673. The reversal of 557248626 is 626842755.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 468471 + ... + 469658.

It is an arithmetic number, because the mean of its divisors is an integer number (42215850).

Almost surely, 2^557248626 is an apocalyptic number.

557248626 is an abundant number, since it is smaller than the sum of its proper divisors (793658574).

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

557248626 is a wasteful number, since it uses less digits than its factorization.

557248626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 938151 (or 938145 counting only the distinct ones).

The product of its digits is 806400, while the sum is 45.

The square root of 557248626 is about 23606.1141656140. The cubic root of 557248626 is about 822.9049387075.

The spelling of 557248626 in words is "five hundred fifty-seven million, two hundred forty-eight thousand, six hundred twenty-six".