51554742 has 16 divisors (see below), whose sum is σ = 103248432. Its totient is φ = 17161760.

The previous prime is 51554729. The next prime is 51554747. The reversal of 51554742 is 24745515.

51554742 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 not an unprimeable number, because it can be changed into a prime (51554747) by changing a digit.

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, 609 + ... + 10172.

It is an arithmetic number, because the mean of its divisors is an integer number (6453027).

Almost surely, 2^51554742 is an apocalyptic number.

51554742 is an abundant number, since it is smaller than the sum of its proper divisors (51693690).

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

51554742 is a wasteful number, since it uses less digits than its factorization.

51554742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11583.

The product of its digits is 28000, while the sum is 33.

The square root of 51554742 is about 7180.1630900698. The cubic root of 51554742 is about 372.1827203875.

The spelling of 51554742 in words is "fifty-one million, five hundred fifty-four thousand, seven hundred forty-two".