5615522538 has 16 divisors (see below), whose sum is σ = 11231826816. Its totient is φ = 1871710560.

The previous prime is 5615522537. The next prime is 5615522573. The reversal of 5615522538 is 8352255165.

It is a super-2 number, since 2×5615522538² = 63068186749571922888, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 5615522538.

It is not an unprimeable number, because it can be changed into a prime (5615522531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106470 + ... + 150222.

It is an arithmetic number, because the mean of its divisors is an integer number (701989176).

Almost surely, 2^5615522538 is an apocalyptic number.

5615522538 is an abundant number, since it is smaller than the sum of its proper divisors (5616304278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5615522538 is a wasteful number, since it uses less digits than its factorization.

5615522538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65149.

The product of its digits is 360000, while the sum is 42.

The square root of 5615522538 is about 74936.7902835450. The cubic root of 5615522538 is about 1777.4472664224.

The spelling of 5615522538 in words is "five billion, six hundred fifteen million, five hundred twenty-two thousand, five hundred thirty-eight".