55116006561562 has 4 divisors (see below), whose sum is σ = 82674009842346. Its totient is φ = 27558003280780.

The previous prime is 55116006561541. The next prime is 55116006561611. The reversal of 55116006561562 is 26516560061155.

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., 38130637350001 + 16985369211561 = 6175001^2 + 4121331^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13779001640389 + ... + 13779001640392.

Almost surely, 2^{55116006561562} is an apocalyptic number.

55116006561562 is a deficient number, since it is larger than the sum of its proper divisors (27558003280784).

55116006561562 is a wasteful number, since it uses less digits than its factorization.

55116006561562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27558003280783.

The product of its (nonzero) digits is 1620000, while the sum is 49.

The spelling of 55116006561562 in words is "fifty-five trillion, one hundred sixteen billion, six million, five hundred sixty-one thousand, five hundred sixty-two".