2513626 has 4 divisors (see below), whose sum is σ = 3770442. Its totient is φ = 1256812.

The previous prime is 2513617. The next prime is 2513653. The reversal of 2513626 is 6263152.

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

It can be written as a sum of positive squares in only one way, i.e., 1442401 + 1071225 = 1201^2 + 1035^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2513626.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 628405 + ... + 628408.

2^2513626 is an apocalyptic number.

2513626 is a deficient number, since it is larger than the sum of its proper divisors (1256816).

2513626 is a wasteful number, since it uses less digits than its factorization.

2513626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1256815.

The product of its digits is 2160, while the sum is 25.

The square root of 2513626 is about 1585.4418942364. The cubic root of 2513626 is about 135.9670118953.

Adding to 2513626 its reverse (6263152), we get a palindrome (8776778).

The spelling of 2513626 in words is "two million, five hundred thirteen thousand, six hundred twenty-six".