90056619 has 12 divisors (see below), whose sum is σ = 130218192. Its totient is φ = 59974800.

The previous prime is 90056611. The next prime is 90056621. The reversal of 90056619 is 91665009.

90056619 is a `hidden beast` number, since 90 + 0 + 566 + 1 + 9 = 666.

It is not a de Polignac number, because 90056619 - 2³ = 90056611 is a prime.

It is a super-2 number, since 2×90056619² = 16220389251422322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (90056611) 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, 4834 + ... + 14264.

It is an arithmetic number, because the mean of its divisors is an integer number (10851516).

Almost surely, 2^90056619 is an apocalyptic number.

90056619 is a deficient number, since it is larger than the sum of its proper divisors (40161573).

90056619 is a wasteful number, since it uses less digits than its factorization.

90056619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10498 (or 10495 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 36.

The square root of 90056619 is about 9489.8165946450. The cubic root of 90056619 is about 448.2344300136.

The spelling of 90056619 in words is "ninety million, fifty-six thousand, six hundred nineteen".