90553131 has 6 divisors (see below), whose sum is σ = 130798980. Its totient is φ = 60368748.

The previous prime is 90553129. The next prime is 90553147. The reversal of 90553131 is 13135509.

It is not a de Polignac number, because 90553131 - 2¹ = 90553129 is a prime.

It is a super-2 number, since 2×90553131² = 16399739067806322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 90553095 and 90553104.

It is not an unprimeable number, because it can be changed into a prime (90553181) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5030721 + ... + 5030738.

It is an arithmetic number, because the mean of its divisors is an integer number (21799830).

Almost surely, 2^90553131 is an apocalyptic number.

90553131 is a deficient number, since it is larger than the sum of its proper divisors (40245849).

90553131 is a wasteful number, since it uses less digits than its factorization.

90553131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10061465 (or 10061462 counting only the distinct ones).

The product of its (nonzero) digits is 2025, while the sum is 27.

The square root of 90553131 is about 9515.9408888454. The cubic root of 90553131 is about 449.0566757656.

The spelling of 90553131 in words is "ninety million, five hundred fifty-three thousand, one hundred thirty-one".