90000531495 has 24 divisors (see below), whose sum is σ = 178286767776. Its totient is φ = 41143099968.

The previous prime is 90000531479. The next prime is 90000531527. The reversal of 90000531495 is 59413500009.

It is not a de Polignac number, because 90000531495 - 2⁴ = 90000531479 is a prime.

It is a super-3 number, since 3×90000531495³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

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, 142857672 + ... + 142858301.

It is an arithmetic number, because the mean of its divisors is an integer number (7428615324).

Almost surely, 2^90000531495 is an apocalyptic number.

90000531495 is a deficient number, since it is larger than the sum of its proper divisors (88286236281).

90000531495 is a wasteful number, since it uses less digits than its factorization.

90000531495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285715991 (or 285715988 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 36.

The spelling of 90000531495 in words is "ninety billion, five hundred thirty-one thousand, four hundred ninety-five".