557561235 has 64 divisors (see below), whose sum is σ = 1136001024. Its totient is φ = 226761600.

The previous prime is 557561231. The next prime is 557561261. The reversal of 557561235 is 532165755.

It is not a de Polignac number, because 557561235 - 2² = 557561231 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 557561193 and 557561202.

It is not an unprimeable number, because it can be changed into a prime (557561231) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 49150 + ... + 59420.

It is an arithmetic number, because the mean of its divisors is an integer number (17750016).

Almost surely, 2^557561235 is an apocalyptic number.

557561235 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

557561235 is an abundant number, since it is smaller than the sum of its proper divisors (578439789).

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

557561235 is a wasteful number, since it uses less digits than its factorization.

557561235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10344.

The product of its digits is 157500, while the sum is 39.

The square root of 557561235 is about 23612.7345938585. The cubic root of 557561235 is about 823.0587894836.

The spelling of 557561235 in words is "five hundred fifty-seven million, five hundred sixty-one thousand, two hundred thirty-five".