90502605 has 48 divisors (see below), whose sum is σ = 166458240. Its totient is φ = 45360000.

The previous prime is 90502603. The next prime is 90502627. The reversal of 90502605 is 50620509.

90502605 is a `hidden beast` number, since 9 + 0 + 50 + 2 + 605 = 666.

It is not a de Polignac number, because 90502605 - 2¹ = 90502603 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90502603) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 128755 + ... + 129455.

It is an arithmetic number, because the mean of its divisors is an integer number (3467880).

Almost surely, 2^90502605 is an apocalyptic number.

90502605 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

It is an amenable number.

90502605 is a deficient number, since it is larger than the sum of its proper divisors (75955635).

90502605 is a wasteful number, since it uses less digits than its factorization.

90502605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 882 (or 879 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 90502605 is about 9513.2857099953. The cubic root of 90502605 is about 448.9731400608.

The spelling of 90502605 in words is "ninety million, five hundred two thousand, six hundred five".