5561634455 has 32 divisors (see below), whose sum is σ = 7251406848. Its totient is φ = 4070620800.

The previous prime is 5561634431. The next prime is 5561634467. The reversal of 5561634455 is 5544361655.

It is a de Polignac number, because none of the positive numbers 2^k-5561634455 is a prime.

It is a super-2 number, since 2×5561634455² = 61863555622086294050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4307360 + ... + 4308650.

It is an arithmetic number, because the mean of its divisors is an integer number (226606464).

Almost surely, 2^5561634455 is an apocalyptic number.

5561634455 is a deficient number, since it is larger than the sum of its proper divisors (1689772393).

5561634455 is a wasteful number, since it uses less digits than its factorization.

5561634455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1847.

The product of its digits is 1080000, while the sum is 44.

The square root of 5561634455 is about 74576.3665982729. The cubic root of 5561634455 is about 1771.7433592954.

The spelling of 5561634455 in words is "five billion, five hundred sixty-one million, six hundred thirty-four thousand, four hundred fifty-five".