51516352 has 14 divisors (see below), whose sum is σ = 102227888. Its totient is φ = 25758144.

The previous prime is 51516349. The next prime is 51516359. The reversal of 51516352 is 25361515.

It is a self number, because there is not a number n which added to its sum of digits gives 51516352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51516359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402408 + ... + 402535.

It is an arithmetic number, because the mean of its divisors is an integer number (7301992).

Almost surely, 2^51516352 is an apocalyptic number.

It is an amenable number.

51516352 is a deficient number, since it is larger than the sum of its proper divisors (50711536).

51516352 is an equidigital number, since it uses as much as digits as its factorization.

51516352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804955 (or 804945 counting only the distinct ones).

The product of its digits is 4500, while the sum is 28.

The square root of 51516352 is about 7177.4892546071. The cubic root of 51516352 is about 372.0903160675.

Adding to 51516352 its reverse (25361515), we get a palindrome (76877867).

The spelling of 51516352 in words is "fifty-one million, five hundred sixteen thousand, three hundred fifty-two".