55042746 has 32 divisors (see below), whose sum is σ = 123028416. Its totient is φ = 16272000.

The previous prime is 55042739. The next prime is 55042759. The reversal of 55042746 is 64724055.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7465 + ... + 12876.

It is an arithmetic number, because the mean of its divisors is an integer number (3844638).

Almost surely, 2^55042746 is an apocalyptic number.

55042746 is an abundant number, since it is smaller than the sum of its proper divisors (67985670).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55042746 is a wasteful number, since it uses less digits than its factorization.

55042746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20398.

The product of its (nonzero) digits is 33600, while the sum is 33.

The square root of 55042746 is about 7419.0798620853. The cubic root of 55042746 is about 380.3937423852.

The spelling of 55042746 in words is "fifty-five million, forty-two thousand, seven hundred forty-six".