90235425 has 24 divisors (see below), whose sum is σ = 170502976. Its totient is φ = 41250240.

The previous prime is 90235423. The next prime is 90235429. The reversal of 90235425 is 52453209.

It is not a de Polignac number, because 90235425 - 2¹ = 90235423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 90235392 and 90235401.

It is not an unprimeable number, because it can be changed into a prime (90235423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 85414 + ... + 86463.

Almost surely, 2^90235425 is an apocalyptic number.

It is an amenable number.

90235425 is a deficient number, since it is larger than the sum of its proper divisors (80267551).

90235425 is a wasteful number, since it uses less digits than its factorization.

90235425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171897 (or 171892 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 90235425 is about 9499.2328637633. The cubic root of 90235425 is about 448.5308880318.

The spelling of 90235425 in words is "ninety million, two hundred thirty-five thousand, four hundred twenty-five".