90252477 has 24 divisors (see below), whose sum is σ = 151519680. Its totient is φ = 50696640.

The previous prime is 90252433. The next prime is 90252517. The reversal of 90252477 is 77425209.

It is not a de Polignac number, because 90252477 - 2⁸ = 90252221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90252427) 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 23 ways as a sum of consecutive naturals, for example, 8424 + ... + 15857.

It is an arithmetic number, because the mean of its divisors is an integer number (6313320).

Almost surely, 2^90252477 is an apocalyptic number.

It is an amenable number.

90252477 is a deficient number, since it is larger than the sum of its proper divisors (61267203).

90252477 is a wasteful number, since it uses less digits than its factorization.

90252477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24353 (or 24350 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 90252477 is about 9500.1303675265. The cubic root of 90252477 is about 448.5591395637.

The spelling of 90252477 in words is "ninety million, two hundred fifty-two thousand, four hundred seventy-seven".