90612655 has 16 divisors (see below), whose sum is σ = 125504064. Its totient is φ = 61516800.

The previous prime is 90612623. The next prime is 90612661. The reversal of 90612655 is 55621609.

It is a happy number.

It is not a de Polignac number, because 90612655 - 2⁵ = 90612623 is a prime.

It is a super-2 number, since 2×90612655² = 16421306492298050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 90612655.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9282 + ... + 16351.

It is an arithmetic number, because the mean of its divisors is an integer number (7844004).

Almost surely, 2^90612655 is an apocalyptic number.

90612655 is a deficient number, since it is larger than the sum of its proper divisors (34891409).

90612655 is a wasteful number, since it uses less digits than its factorization.

90612655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25746.

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 90612655 is about 9519.0679690818. The cubic root of 90612655 is about 449.1550481966.

The spelling of 90612655 in words is "ninety million, six hundred twelve thousand, six hundred fifty-five".