51633804 has 48 divisors (see below), whose sum is σ = 130072320. Its totient is φ = 15892800.

The previous prime is 51633787. The next prime is 51633809. The reversal of 51633804 is 40833615.

It is not an unprimeable number, because it can be changed into a prime (51633809) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4779 + ... + 11229.

It is an arithmetic number, because the mean of its divisors is an integer number (2709840).

Almost surely, 2^51633804 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 51633804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65036160).

51633804 is an abundant number, since it is smaller than the sum of its proper divisors (78438516).

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

51633804 is a wasteful number, since it uses less digits than its factorization.

51633804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6510 (or 6508 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 51633804 is about 7185.6665661579. Note that the first 3 decimals coincide. The cubic root of 51633804 is about 372.3728773612.

The spelling of 51633804 in words is "fifty-one million, six hundred thirty-three thousand, eight hundred four".