51599416 has 32 divisors (see below), whose sum is σ = 106498800. Its totient is φ = 23242240.

The previous prime is 51599399. The next prime is 51599461. The reversal of 51599416 is 61499515.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7350 + ... + 12538.

Almost surely, 2^51599416 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 51599416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53249400).

51599416 is an abundant number, since it is smaller than the sum of its proper divisors (54899384).

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

51599416 is a wasteful number, since it uses less digits than its factorization.

51599416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5319 (or 5315 counting only the distinct ones).

The product of its digits is 48600, while the sum is 40.

The square root of 51599416 is about 7183.2733485508. The cubic root of 51599416 is about 372.2901924965.

Subtracting 51599416 from its reverse (61499515), we obtain a palindrome (9900099).

The spelling of 51599416 in words is "fifty-one million, five hundred ninety-nine thousand, four hundred sixteen".