90504451 has 8 divisors (see below), whose sum is σ = 92057184. Its totient is φ = 88960320.

The previous prime is 90504437. The next prime is 90504461. The reversal of 90504451 is 15440509.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 90504451 - 2¹⁷ = 90373379 is a prime.

It is a super-2 number, since 2×90504451² = 16382111301622802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90504461) 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, 21186 + ... + 25096.

It is an arithmetic number, because the mean of its divisors is an integer number (11507148).

Almost surely, 2^90504451 is an apocalyptic number.

90504451 is a deficient number, since it is larger than the sum of its proper divisors (1552733).

90504451 is a wasteful number, since it uses less digits than its factorization.

90504451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4301.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 90504451 is about 9513.3827317101. The cubic root of 90504451 is about 448.9761926388.

The spelling of 90504451 in words is "ninety million, five hundred four thousand, four hundred fifty-one".