51884147 has 16 divisors (see below), whose sum is σ = 61048512. Its totient is φ = 43169280.

The previous prime is 51884141. The next prime is 51884149. The reversal of 51884147 is 74148815.

It is a happy number.

It is not a de Polignac number, because 51884147 - 2⁶ = 51884083 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51884147.

It is not an unprimeable number, because it can be changed into a prime (51884141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83783 + ... + 84399.

It is an arithmetic number, because the mean of its divisors is an integer number (3815532).

Almost surely, 2^51884147 is an apocalyptic number.

51884147 is a deficient number, since it is larger than the sum of its proper divisors (9164365).

51884147 is a wasteful number, since it uses less digits than its factorization.

51884147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 958.

The product of its digits is 35840, while the sum is 38.

The square root of 51884147 is about 7203.0651114647. The cubic root of 51884147 is about 372.9737155851.

The spelling of 51884147 in words is "fifty-one million, eight hundred eighty-four thousand, one hundred forty-seven".