90452725 has 12 divisors (see below), whose sum is σ = 122358240. Its totient is φ = 65783600.

The previous prime is 90452717. The next prime is 90452729. The reversal of 90452725 is 52725409.

It is not a de Polignac number, because 90452725 - 2³ = 90452717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90452729) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 164185 + ... + 164734.

It is an arithmetic number, because the mean of its divisors is an integer number (10196520).

Almost surely, 2^90452725 is an apocalyptic number.

It is an amenable number.

90452725 is a deficient number, since it is larger than the sum of its proper divisors (31905515).

90452725 is a wasteful number, since it uses less digits than its factorization.

90452725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328940 (or 328935 counting only the distinct ones).

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

The square root of 90452725 is about 9510.6637518104. The cubic root of 90452725 is about 448.8906418987.

The spelling of 90452725 in words is "ninety million, four hundred fifty-two thousand, seven hundred twenty-five".