90455594 has 16 divisors (see below), whose sum is σ = 139478976. Its totient is φ = 43970400.

The previous prime is 90455581. The next prime is 90455597. The reversal of 90455594 is 49555409.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is not an unprimeable number, because it can be changed into a prime (90455597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23729 + ... + 27275.

It is an arithmetic number, because the mean of its divisors is an integer number (8717436).

Almost surely, 2^90455594 is an apocalyptic number.

90455594 is a deficient number, since it is larger than the sum of its proper divisors (49023382).

90455594 is a wasteful number, since it uses less digits than its factorization.

90455594 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3901.

The product of its (nonzero) digits is 162000, while the sum is 41.

The square root of 90455594 is about 9510.8145813069. The cubic root of 90455594 is about 448.8953878535.

The spelling of 90455594 in words is "ninety million, four hundred fifty-five thousand, five hundred ninety-four".