2553656513 has 4 divisors (see below), whose sum is σ = 2703871620. Its totient is φ = 2403441408.

The previous prime is 2553656507. The next prime is 2553656537. The reversal of 2553656513 is 3156563552.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1103036944 + 1450619569 = 33212^2 + 38087^2 .

It is a cyclic number.

It is not a de Polignac number, because 2553656513 - 2¹² = 2553652417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2553652513) 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, 75107528 + ... + 75107561.

It is an arithmetic number, because the mean of its divisors is an integer number (675967905).

Almost surely, 2^2553656513 is an apocalyptic number.

It is an amenable number.

2553656513 is a deficient number, since it is larger than the sum of its proper divisors (150215107).

2553656513 is a wasteful number, since it uses less digits than its factorization.

2553656513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150215106.

The product of its digits is 405000, while the sum is 41.

The square root of 2553656513 is about 50533.7165959521. The cubic root of 2553656513 is about 1366.8499050429.

The spelling of 2553656513 in words is "two billion, five hundred fifty-three million, six hundred fifty-six thousand, five hundred thirteen".