2513651 has 12 divisors (see below), whose sum is σ = 2994552. Its totient is φ = 2102688.

The previous prime is 2513617. The next prime is 2513653. The reversal of 2513651 is 1563152.

It is not a de Polignac number, because 2513651 - 2¹⁸ = 2251507 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (2513653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1511 + ... + 2703.

It is an arithmetic number, because the mean of its divisors is an integer number (249546).

2^2513651 is an apocalyptic number.

2513651 is a deficient number, since it is larger than the sum of its proper divisors (480901).

2513651 is a wasteful number, since it uses less digits than its factorization.

2513651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1250 (or 1243 counting only the distinct ones).

The product of its digits is 900, while the sum is 23.

The square root of 2513651 is about 1585.4497784541. The cubic root of 2513651 is about 135.9674626603.

The spelling of 2513651 in words is "two million, five hundred thirteen thousand, six hundred fifty-one".