55613432511 has 48 divisors (see below), whose sum is σ = 104684134464. Its totient is φ = 27608988672.

The previous prime is 55613432467. The next prime is 55613432549. The reversal of 55613432511 is 11523431655.

55613432511 is a `hidden beast` number, since 5 + 5 + 6 + 134 + 3 + 2 + 511 = 666.

It is not a de Polignac number, because 55613432511 - 2⁶ = 55613432447 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55613432551) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1983256 + ... + 2011101.

It is an arithmetic number, because the mean of its divisors is an integer number (2180919468).

Almost surely, 2^55613432511 is an apocalyptic number.

55613432511 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

55613432511 is a deficient number, since it is larger than the sum of its proper divisors (49070701953).

55613432511 is a wasteful number, since it uses less digits than its factorization.

55613432511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3994400 (or 3994397 counting only the distinct ones).

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

The spelling of 55613432511 in words is "fifty-five billion, six hundred thirteen million, four hundred thirty-two thousand, five hundred eleven".