51040192 has 56 divisors (see below), whose sum is σ = 117774720. Its totient is φ = 21492480.

The previous prime is 51040181. The next prime is 51040193. The reversal of 51040192 is 29104015.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51040193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25467 + ... + 27397.

It is an arithmetic number, because the mean of its divisors is an integer number (2103120).

Almost surely, 2^51040192 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 51040192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58887360).

51040192 is an abundant number, since it is smaller than the sum of its proper divisors (66734528).

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

51040192 is a wasteful number, since it uses less digits than its factorization.

51040192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2009 (or 1999 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 51040192 is about 7144.2418772043. The cubic root of 51040192 is about 370.9403691307.

The spelling of 51040192 in words is "fifty-one million, forty thousand, one hundred ninety-two".