5665122513 has 6 divisors (see below), whose sum is σ = 8182954754. Its totient is φ = 3776748336.

The previous prime is 5665122461. The next prime is 5665122527. The reversal of 5665122513 is 3152215665.

It can be written as a sum of positive squares in only one way, i.e., 5662863504 + 2259009 = 75252^2 + 1503^2 .

It is not a de Polignac number, because 5665122513 - 2⁸ = 5665122257 is a prime.

It is a super-2 number, since 2×5665122513² = 64187226174598870338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5665122553) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 314729020 + ... + 314729037.

Almost surely, 2^5665122513 is an apocalyptic number.

It is an amenable number.

5665122513 is a deficient number, since it is larger than the sum of its proper divisors (2517832241).

5665122513 is a wasteful number, since it uses less digits than its factorization.

5665122513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629458063 (or 629458060 counting only the distinct ones).

The product of its digits is 54000, while the sum is 36.

The square root of 5665122513 is about 75267.0081310530. The cubic root of 5665122513 is about 1782.6651269384.

The spelling of 5665122513 in words is "five billion, six hundred sixty-five million, one hundred twenty-two thousand, five hundred thirteen".