88531 has 4 divisors (see below), whose sum is σ = 89152. Its totient is φ = 87912.

The previous prime is 88523. The next prime is 88547. The reversal of 88531 is 13588.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 88531 - 2³ = 88523 is a prime.

It is a super-2 number, since 2×88531² = 15675475922, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 88496 and 88505.

It is not an unprimeable number, because it can be changed into a prime (88591) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25 + ... + 421.

It is an arithmetic number, because the mean of its divisors is an integer number (22288).

2⁸⁸⁵³¹ is an apocalyptic number.

88531 is a deficient number, since it is larger than the sum of its proper divisors (621).

88531 is a wasteful number, since it uses less digits than its factorization.

88531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620.

The product of its digits is 960, while the sum is 25.

The square root of 88531 is about 297.5415937310. The cubic root of 88531 is about 44.5688871199.

Subtracting from 88531 its product of digits (960), we obtain a triangular number (87571 = T₄₁₈).

The spelling of 88531 in words is "eighty-eight thousand, five hundred thirty-one".