51455124 has 72 divisors (see below), whose sum is σ = 157405248. Its totient is φ = 13835520.

The previous prime is 51455119. The next prime is 51455143. The reversal of 51455124 is 42155415.

51455124 is a `hidden beast` number, since 5 + 145 + 512 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1722 + ... + 10289.

It is an arithmetic number, because the mean of its divisors is an integer number (2186184).

Almost surely, 2^51455124 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51455124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78702624).

51455124 is an abundant number, since it is smaller than the sum of its proper divisors (105950124).

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

51455124 is a wasteful number, since it uses less digits than its factorization.

51455124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12045 (or 12040 counting only the distinct ones).

The product of its digits is 4000, while the sum is 27.

The square root of 51455124 is about 7173.2227067058. Note that the first 3 decimals coincide. The cubic root of 51455124 is about 371.9428458846.

The spelling of 51455124 in words is "fifty-one million, four hundred fifty-five thousand, one hundred twenty-four".