2561372 has 24 divisors (see below), whose sum is σ = 5104512. Its totient is φ = 1113200.

The previous prime is 2561341. The next prime is 2561387. The reversal of 2561372 is 2731652.

2561372 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 254 + ... + 2277.

It is an arithmetic number, because the mean of its divisors is an integer number (212688).

2^2561372 is an apocalyptic number.

2561372 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2561372 is a deficient number, since it is larger than the sum of its proper divisors (2543140).

2561372 is a wasteful number, since it uses less digits than its factorization.

2561372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2569 (or 2567 counting only the distinct ones).

The product of its digits is 2520, while the sum is 26.

The square root of 2561372 is about 1600.4286925696. The cubic root of 2561372 is about 136.8225097759.

The spelling of 2561372 in words is "two million, five hundred sixty-one thousand, three hundred seventy-two".