90053520 has 40 divisors (see below), whose sum is σ = 279166656. Its totient is φ = 24014208.

The previous prime is 90053501. The next prime is 90053569. The reversal of 90053520 is 2535009.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

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, 187372 + ... + 187851.

Almost surely, 2^90053520 is an apocalyptic number.

It is an amenable number.

90053520 is an abundant number, since it is smaller than the sum of its proper divisors (189113136).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90053520 is a wasteful number, since it uses less digits than its factorization.

90053520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375239 (or 375233 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 24.

The square root of 90053520 is about 9489.6533129509. The cubic root of 90053520 is about 448.2292884539.

Adding to 90053520 its reverse (2535009), we get a palindrome (92588529).

The spelling of 90053520 in words is "ninety million, fifty-three thousand, five hundred twenty".