51873192 has 96 divisors (see below), whose sum is σ = 169041600. Its totient is φ = 14038272.

The previous prime is 51873191. The next prime is 51873193. The reversal of 51873192 is 29137815.

It is an interprime number because it is at equal distance from previous prime (51873191) and next prime (51873193).

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

It is not an unprimeable number, because it can be changed into a prime (51873191) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6868 + ... + 12284.

It is an arithmetic number, because the mean of its divisors is an integer number (1760850).

Almost surely, 2^51873192 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 51873192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84520800).

51873192 is an abundant number, since it is smaller than the sum of its proper divisors (117168408).

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

51873192 is a wasteful number, since it uses less digits than its factorization.

51873192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5455 (or 5448 counting only the distinct ones).

The product of its digits is 15120, while the sum is 36.

The square root of 51873192 is about 7202.3046311580. The cubic root of 51873192 is about 372.9474634131.

The spelling of 51873192 in words is "fifty-one million, eight hundred seventy-three thousand, one hundred ninety-two".