557400055 has 32 divisors (see below), whose sum is σ = 745251840. Its totient is φ = 398280960.

The previous prime is 557400037. The next prime is 557400071. The reversal of 557400055 is 550004755.

It is not a de Polignac number, because 557400055 - 2⁵ = 557400023 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 153339 + ... + 156931.

It is an arithmetic number, because the mean of its divisors is an integer number (23289120).

Almost surely, 2^557400055 is an apocalyptic number.

557400055 is a deficient number, since it is larger than the sum of its proper divisors (187851785).

557400055 is a wasteful number, since it uses less digits than its factorization.

557400055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3711.

The product of its (nonzero) digits is 17500, while the sum is 31.

The square root of 557400055 is about 23609.3213583110. The cubic root of 557400055 is about 822.9794717976.

The spelling of 557400055 in words is "five hundred fifty-seven million, four hundred thousand, fifty-five".