557255946 has 16 divisors (see below), whose sum is σ = 1200243744. Its totient is φ = 171463344.

The previous prime is 557255899. The next prime is 557255947. The reversal of 557255946 is 649552755.

It is a junction number, because it is equal to n+sod(n) for n = 557255895 and 557255904.

It is not an unprimeable number, because it can be changed into a prime (557255947) 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, 3572076 + ... + 3572231.

It is an arithmetic number, because the mean of its divisors is an integer number (75015234).

Almost surely, 2^557255946 is an apocalyptic number.

557255946 is an abundant number, since it is smaller than the sum of its proper divisors (642987798).

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

557255946 is a wasteful number, since it uses less digits than its factorization.

557255946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7144325.

The product of its digits is 1890000, while the sum is 48.

The square root of 557255946 is about 23606.2692096824. The cubic root of 557255946 is about 822.9085419093.

The spelling of 557255946 in words is "five hundred fifty-seven million, two hundred fifty-five thousand, nine hundred forty-six".