90610555 has 24 divisors (see below), whose sum is σ = 128291040. Its totient is φ = 61246080.

The previous prime is 90610517. The next prime is 90610571. The reversal of 90610555 is 55501609.

It is a happy number.

It is not a de Polignac number, because 90610555 - 2²³ = 82221947 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14791 + ... + 19999.

It is an arithmetic number, because the mean of its divisors is an integer number (5345460).

Almost surely, 2^90610555 is an apocalyptic number.

90610555 is a deficient number, since it is larger than the sum of its proper divisors (37680485).

90610555 is a wasteful number, since it uses less digits than its factorization.

90610555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5299 (or 5292 counting only the distinct ones).

The product of its (nonzero) digits is 6750, while the sum is 31.

The square root of 90610555 is about 9518.9576635260. The cubic root of 90610555 is about 449.1515783616.

The spelling of 90610555 in words is "ninety million, six hundred ten thousand, five hundred fifty-five".