51920092 has 48 divisors (see below), whose sum is σ = 109992960. Its totient is φ = 20970432.

The previous prime is 51920087. The next prime is 51920117. The reversal of 51920092 is 29002915.

51920092 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 51920092.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34173 + ... + 35659.

It is an arithmetic number, because the mean of its divisors is an integer number (2291520).

Almost surely, 2^51920092 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 51920092, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54996480).

51920092 is an abundant number, since it is smaller than the sum of its proper divisors (58072868).

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

51920092 is a wasteful number, since it uses less digits than its factorization.

51920092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1570 (or 1568 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 51920092 is about 7205.5597978228. The cubic root of 51920092 is about 373.0598269582.

The spelling of 51920092 in words is "fifty-one million, nine hundred twenty thousand, ninety-two".