51769344 has 104 divisors (see below), whose sum is σ = 150976512. Its totient is φ = 15646720.

The previous prime is 51769339. The next prime is 51769363. The reversal of 51769344 is 44396715.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134977 + ... + 135359.

Almost surely, 2^51769344 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 51769344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75488256).

51769344 is an abundant number, since it is smaller than the sum of its proper divisors (99207168).

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

51769344 is a wasteful number, since it uses less digits than its factorization.

51769344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421 (or 399 counting only the distinct ones).

The product of its digits is 90720, while the sum is 39.

The square root of 51769344 is about 7195.0916602918. The cubic root of 51769344 is about 372.6984219805.

The spelling of 51769344 in words is "fifty-one million, seven hundred sixty-nine thousand, three hundred forty-four".