2572637 has 4 divisors (see below), whose sum is σ = 2578080. Its totient is φ = 2567196.

The previous prime is 2572621. The next prime is 2572649. The reversal of 2572637 is 7362752.

It is a happy number.

2572637 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2572637 - 2⁴ = 2572621 is a prime.

It is a super-2 number, since 2×2572637² = 13236922267538, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2572607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1937 + ... + 2982.

It is an arithmetic number, because the mean of its divisors is an integer number (644520).

2^2572637 is an apocalyptic number.

It is an amenable number.

2572637 is a deficient number, since it is larger than the sum of its proper divisors (5443).

2572637 is an equidigital number, since it uses as much as digits as its factorization.

2572637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5442.

The product of its digits is 17640, while the sum is 32.

The square root of 2572637 is about 1603.9442010245. The cubic root of 2572637 is about 137.0227997645.

The spelling of 2572637 in words is "two million, five hundred seventy-two thousand, six hundred thirty-seven".