51847416 has 48 divisors (see below), whose sum is σ = 148683600. Its totient is φ = 16265472.

The previous prime is 51847403. The next prime is 51847421. The reversal of 51847416 is 61474815.

It is a happy number.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19956 + ... + 22403.

It is an arithmetic number, because the mean of its divisors is an integer number (3097575).

Almost surely, 2^51847416 is an apocalyptic number.

It is an amenable number.

51847416 is an abundant number, since it is smaller than the sum of its proper divisors (96836184).

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

51847416 is a wasteful number, since it uses less digits than its factorization.

51847416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42388 (or 42381 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 51847416 is about 7200.5149815829. The cubic root of 51847416 is about 372.8856801416.

The spelling of 51847416 in words is "fifty-one million, eight hundred forty-seven thousand, four hundred sixteen".