90070556 has 12 divisors (see below), whose sum is σ = 166895568. Its totient is φ = 42386112.

The previous prime is 90070523. The next prime is 90070571. The reversal of 90070556 is 65507009.

It is a super-2 number, since 2×90070556² = 16225410116298272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 662216 + ... + 662351.

It is an arithmetic number, because the mean of its divisors is an integer number (13907964).

Almost surely, 2^90070556 is an apocalyptic number.

It is an amenable number.

90070556 is a deficient number, since it is larger than the sum of its proper divisors (76825012).

90070556 is a wasteful number, since it uses less digits than its factorization.

90070556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1324588 (or 1324586 counting only the distinct ones).

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

The square root of 90070556 is about 9490.5508796908. The cubic root of 90070556 is about 448.2575514716.

The spelling of 90070556 in words is "ninety million, seventy thousand, five hundred fifty-six".