90203025 has 48 divisors (see below), whose sum is σ = 167989248. Its totient is φ = 42312000.

The previous prime is 90203023. The next prime is 90203027. The reversal of 90203025 is 52030209.

It is an interprime number because it is at equal distance from previous prime (90203023) and next prime (90203027).

It is not a de Polignac number, because 90203025 - 2¹ = 90203023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 90202992 and 90203010.

It is not an unprimeable number, because it can be changed into a prime (90203023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23812 + ... + 27338.

It is an arithmetic number, because the mean of its divisors is an integer number (3499776).

Almost surely, 2^90203025 is an apocalyptic number.

It is an amenable number.

90203025 is a deficient number, since it is larger than the sum of its proper divisors (77786223).

90203025 is a wasteful number, since it uses less digits than its factorization.

90203025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3582 (or 3577 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 90203025 is about 9497.5273097791. The cubic root of 90203025 is about 448.4771983253.

The spelling of 90203025 in words is "ninety million, two hundred three thousand, twenty-five".