115557498 has 24 divisors (see below), whose sum is σ = 286142688. Its totient is φ = 33016392.

The previous prime is 115557493. The next prime is 115557499. The reversal of 115557498 is 894755511.

115557498 is a `hidden beast` number, since 1 + 1 + 5 + 557 + 4 + 98 = 666.

It is not an unprimeable number, because it can be changed into a prime (115557493) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 458436 + ... + 458687.

It is an arithmetic number, because the mean of its divisors is an integer number (11922612).

Almost surely, 2^115557498 is an apocalyptic number.

115557498 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

115557498 is an abundant number, since it is smaller than the sum of its proper divisors (170585190).

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

115557498 is a wasteful number, since it uses less digits than its factorization.

115557498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917138 (or 917135 counting only the distinct ones).

The product of its digits is 252000, while the sum is 45.

The square root of 115557498 is about 10749.7673463196. The cubic root of 115557498 is about 487.0789674436.

It can be divided in two parts, 1155 and 57498, that added together give a triangular number (58653 = T₃₄₂).

The spelling of 115557498 in words is "one hundred fifteen million, five hundred fifty-seven thousand, four hundred ninety-eight".