51802036 has 36 divisors (see below), whose sum is σ = 107321956. Its totient is φ = 21732480.

The previous prime is 51802027. The next prime is 51802039. The reversal of 51802036 is 63020815.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8820900 + 42981136 = 2970^2 + 6556^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 51802036.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51802039) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2176 + ... + 10408.

Almost surely, 2^51802036 is an apocalyptic number.

It is an amenable number.

51802036 is an abundant number, since it is smaller than the sum of its proper divisors (55519920).

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

51802036 is a wasteful number, since it uses less digits than its factorization.

51802036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8272 (or 8259 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 51802036 is about 7197.3631282575. The cubic root of 51802036 is about 372.7768576724.

The spelling of 51802036 in words is "fifty-one million, eight hundred two thousand, thirty-six".