90557060 has 48 divisors (see below), whose sum is σ = 208111680. Its totient is φ = 32826240.

The previous prime is 90557057. The next prime is 90557063. The reversal of 90557060 is 6075509.

It is an interprime number because it is at equal distance from previous prime (90557057) and next prime (90557063).

It is a super-2 number, since 2×90557060² = 16401162231687200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (90557063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122171 + ... + 122909.

It is an arithmetic number, because the mean of its divisors is an integer number (4335660).

Almost surely, 2^90557060 is an apocalyptic number.

It is an amenable number.

90557060 is an abundant number, since it is smaller than the sum of its proper divisors (117554620).

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

90557060 is a wasteful number, since it uses less digits than its factorization.

90557060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1316 (or 1314 counting only the distinct ones).

The product of its (nonzero) digits is 9450, while the sum is 32.

The square root of 90557060 is about 9516.1473296708. The cubic root of 90557060 is about 449.0631703622.

The spelling of 90557060 in words is "ninety million, five hundred fifty-seven thousand, sixty".