2553531 has 4 divisors (see below), whose sum is σ = 3404712. Its totient is φ = 1702352.

The previous prime is 2553527. The next prime is 2553539. The reversal of 2553531 is 1353552.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2553531 - 2² = 2553527 is a prime.

It is a super-2 number, since 2×2553531² = 13041041135922, which contains 22 as substring.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (2553539) 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, 425586 + ... + 425591.

It is an arithmetic number, because the mean of its divisors is an integer number (851178).

2^2553531 is an apocalyptic number.

2553531 is a deficient number, since it is larger than the sum of its proper divisors (851181).

2553531 is an equidigital number, since it uses as much as digits as its factorization.

2553531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851180.

The product of its digits is 2250, while the sum is 24.

The square root of 2553531 is about 1597.9771587854. The cubic root of 2553531 is about 136.6827510979.

The spelling of 2553531 in words is "two million, five hundred fifty-three thousand, five hundred thirty-one".