90123540503522 has 16 divisors (see below), whose sum is σ = 135776938169400. Its totient is φ = 44864564878080.

The previous prime is 90123540503519. The next prime is 90123540503567. The reversal of 90123540503522 is 22530504532109.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 89597943053161 + 525597450361 = 9465619^2 + 724981^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 90123540503522.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50008004 + ... + 51778832.

Almost surely, 2^{90123540503522} is an apocalyptic number.

90123540503522 is a deficient number, since it is larger than the sum of its proper divisors (45653397665878).

90123540503522 is a wasteful number, since it uses less digits than its factorization.

90123540503522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1882181.

The product of its (nonzero) digits is 324000, while the sum is 41.

The spelling of 90123540503522 in words is "ninety trillion, one hundred twenty-three billion, five hundred forty million, five hundred three thousand, five hundred twenty-two".