51055942 has 24 divisors (see below), whose sum is σ = 89430264. Its totient is φ = 21796992.

The previous prime is 51055919. The next prime is 51055957. The reversal of 51055942 is 24955015.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 29238 + ... + 30934.

It is an arithmetic number, because the mean of its divisors is an integer number (3726261).

Almost surely, 2^51055942 is an apocalyptic number.

51055942 is a deficient number, since it is larger than the sum of its proper divisors (38374322).

51055942 is a wasteful number, since it uses less digits than its factorization.

51055942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2020 (or 2013 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 31.

The square root of 51055942 is about 7145.3440784892. The cubic root of 51055942 is about 370.9785201757.

The spelling of 51055942 in words is "fifty-one million, fifty-five thousand, nine hundred forty-two".