90725452 has 6 divisors (see below), whose sum is σ = 158769548. Its totient is φ = 45362724.

The previous prime is 90725381. The next prime is 90725461. The reversal of 90725452 is 25452709.

It is a super-2 number, since 2×90725452² = 16462215281208608, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11340678 + ... + 11340685.

Almost surely, 2^90725452 is an apocalyptic number.

It is an amenable number.

90725452 is a deficient number, since it is larger than the sum of its proper divisors (68044096).

90725452 is a wasteful number, since it uses less digits than its factorization.

90725452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22681367 (or 22681365 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 90725452 is about 9524.9909186308. The cubic root of 90725452 is about 449.3413442283.

The spelling of 90725452 in words is "ninety million, seven hundred twenty-five thousand, four hundred fifty-two".