55574751 has 16 divisors (see below), whose sum is σ = 78617088. Its totient is φ = 34800000.

The previous prime is 55574749. The next prime is 55574773. The reversal of 55574751 is 15747555.

It is not a de Polignac number, because 55574751 - 2¹ = 55574749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55574741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37576 + ... + 39026.

It is an arithmetic number, because the mean of its divisors is an integer number (4913568).

Almost surely, 2^55574751 is an apocalyptic number.

55574751 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

55574751 is a deficient number, since it is larger than the sum of its proper divisors (23042337).

55574751 is a wasteful number, since it uses less digits than its factorization.

55574751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2222.

The product of its digits is 122500, while the sum is 39.

The square root of 55574751 is about 7454.8474833493. The cubic root of 55574751 is about 381.6153557213.

The spelling of 55574751 in words is "fifty-five million, five hundred seventy-four thousand, seven hundred fifty-one".