51849792 has 42 divisors (see below), whose sum is σ = 148619718. Its totient is φ = 17283072.

The previous prime is 51849773. The next prime is 51849793. The reversal of 51849792 is 29794815.

51849792 is a `hidden beast` number, since 518 + 49 + 7 + 92 = 666.

It can be written as a sum of positive squares in only one way, i.e., 50466816 + 1382976 = 7104^2 + 1176^2 .

It is not an unprimeable number, because it can be changed into a prime (51849793) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 44433 + ... + 45584.

Almost surely, 2^51849792 is an apocalyptic number.

It is an amenable number.

51849792 is an abundant number, since it is smaller than the sum of its proper divisors (96769926).

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

51849792 is a wasteful number, since it uses less digits than its factorization.

51849792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90035 (or 90022 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The square root of 51849792 is about 7200.6799678919. The cubic root of 51849792 is about 372.8913761043.

The spelling of 51849792 in words is "fifty-one million, eight hundred forty-nine thousand, seven hundred ninety-two".