51554542 has 16 divisors (see below), whose sum is σ = 85532832. Its totient is φ = 23150880.

The previous prime is 51554539. The next prime is 51554551. The reversal of 51554542 is 24545515.

51554542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25834 + ... + 27757.

It is an arithmetic number, because the mean of its divisors is an integer number (5345802).

Almost surely, 2^51554542 is an apocalyptic number.

51554542 is a deficient number, since it is larger than the sum of its proper divisors (33978290).

51554542 is a wasteful number, since it uses less digits than its factorization.

51554542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53643.

The product of its digits is 20000, while the sum is 31.

The square root of 51554542 is about 7180.1491627960. The cubic root of 51554542 is about 372.1822391085.

The spelling of 51554542 in words is "fifty-one million, five hundred fifty-four thousand, five hundred forty-two".