2500531 has 8 divisors (see below), whose sum is σ = 2755584. Its totient is φ = 2250120.

The previous prime is 2500529. The next prime is 2500543. The reversal of 2500531 is 1350052.

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 2500531 - 2¹ = 2500529 is a prime.

It is a super-2 number, since 2×2500531² = 12505310563922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2500591) 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, 30 + ... + 2236.

It is an arithmetic number, because the mean of its divisors is an integer number (344448).

2^2500531 is an apocalyptic number.

2500531 is a deficient number, since it is larger than the sum of its proper divisors (255053).

2500531 is a wasteful number, since it uses less digits than its factorization.

2500531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2321.

The product of its (nonzero) digits is 150, while the sum is 16.

The square root of 2500531 is about 1581.3067381125. The cubic root of 2500531 is about 135.7304891879.

Adding to 2500531 its reverse (1350052), we get a palindrome (3850583).

The spelling of 2500531 in words is "two million, five hundred thousand, five hundred thirty-one".