90254525 has 12 divisors (see below), whose sum is σ = 115775700. Its totient is φ = 69713280.

The previous prime is 90254501. The next prime is 90254537. The reversal of 90254525 is 52545209.

It can be written as a sum of positive squares in 6 ways, for example, as 11648569 + 78605956 = 3413^2 + 8866^2 .

It is a de Polignac number, because none of the positive numbers 2^k-90254525 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 90254491 and 90254500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61520 + ... + 62969.

It is an arithmetic number, because the mean of its divisors is an integer number (9647975).

Almost surely, 2^90254525 is an apocalyptic number.

It is an amenable number.

90254525 is a deficient number, since it is larger than the sum of its proper divisors (25521175).

90254525 is a wasteful number, since it uses less digits than its factorization.

90254525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124528 (or 124523 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 90254525 is about 9500.2381549096. The cubic root of 90254525 is about 448.5625324241.

The spelling of 90254525 in words is "ninety million, two hundred fifty-four thousand, five hundred twenty-five".