90025454 has 16 divisors (see below), whose sum is σ = 140421600. Its totient is φ = 43234464.

The previous prime is 90025451. The next prime is 90025459. The reversal of 90025454 is 45452009.

90025454 = 5477² + 5478² + 5479².

It is a happy number.

It is a super-2 number, since 2×90025454² = 16209164735812232, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90025451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7487 + ... + 15365.

It is an arithmetic number, because the mean of its divisors is an integer number (8776350).

Almost surely, 2^90025454 is an apocalyptic number.

90025454 is a deficient number, since it is larger than the sum of its proper divisors (50396146).

90025454 is a wasteful number, since it uses less digits than its factorization.

90025454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8107.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 90025454 is about 9488.1744292567. The cubic root of 90025454 is about 448.1827187018.

The spelling of 90025454 in words is "ninety million, twenty-five thousand, four hundred fifty-four".