89525621 has 8 divisors (see below), whose sum is σ = 95149080. Its totient is φ = 83941888.

The previous prime is 89525609. The next prime is 89525629. The reversal of 89525621 is 12652598.

It can be written as a sum of positive squares in 4 ways, for example, as 24900100 + 64625521 = 4990^2 + 8039^2 .

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 89525621 - 2¹⁴ = 89509237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89525629) 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, 5216 + ... + 14361.

It is an arithmetic number, because the mean of its divisors is an integer number (11893635).

Almost surely, 2^89525621 is an apocalyptic number.

It is an amenable number.

89525621 is a deficient number, since it is larger than the sum of its proper divisors (5623459).

89525621 is a wasteful number, since it uses less digits than its factorization.

89525621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19863.

The product of its digits is 43200, while the sum is 38.

The square root of 89525621 is about 9461.7979792426. The cubic root of 89525621 is about 447.3517226667.

The spelling of 89525621 in words is "eighty-nine million, five hundred twenty-five thousand, six hundred twenty-one".