89525891 has 36 divisors (see below), whose sum is σ = 118913400. Its totient is φ = 66987648.

The previous prime is 89525879. The next prime is 89525897. The reversal of 89525891 is 19852598.

It is not a de Polignac number, because 89525891 - 2¹⁴ = 89509507 is a prime.

It is not an unprimeable number, because it can be changed into a prime (89525897) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 157055 + ... + 157623.

It is an arithmetic number, because the mean of its divisors is an integer number (3303150).

Almost surely, 2^89525891 is an apocalyptic number.

89525891 is a deficient number, since it is larger than the sum of its proper divisors (29387509).

89525891 is a wasteful number, since it uses less digits than its factorization.

89525891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628 (or 608 counting only the distinct ones).

The product of its digits is 259200, while the sum is 47.

The square root of 89525891 is about 9461.8122471332. The cubic root of 89525891 is about 447.3521723884.

The spelling of 89525891 in words is "eighty-nine million, five hundred twenty-five thousand, eight hundred ninety-one".