55574766747555 has 48 divisors (see below), whose sum is σ = 97744364702880. Its totient is φ = 26943614945280.

The previous prime is 55574766747547. The next prime is 55574766747581.

55574766747555 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 55574766747555 - 2³ = 55574766747547 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 27582291 + ... + 29528499.

It is an arithmetic number, because the mean of its divisors is an integer number (2036340931310).

Almost surely, 2^{55574766747555} is an apocalyptic number.

55574766747555 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55574766747555 is a deficient number, since it is larger than the sum of its proper divisors (42169597955325).

55574766747555 is a wasteful number, since it uses less digits than its factorization.

55574766747555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1961972 (or 1961961 counting only the distinct ones).

The product of its digits is 21609000000, while the sum is 78.

The spelling of 55574766747555 in words is "fifty-five trillion, five hundred seventy-four billion, seven hundred sixty-six million, seven hundred forty-seven thousand, five hundred fifty-five".