51409696 has 24 divisors (see below), whose sum is σ = 108999324. Its totient is φ = 23727360.

The previous prime is 51409691. The next prime is 51409697. The reversal of 51409696 is 69690415.

It can be written as a sum of positive squares in 2 ways, for example, as 49505296 + 1904400 = 7036^2 + 1380^2 .

It is not an unprimeable number, because it can be changed into a prime (51409691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61375 + ... + 62206.

Almost surely, 2^51409696 is an apocalyptic number.

It is an amenable number.

51409696 is an abundant number, since it is smaller than the sum of its proper divisors (57589628).

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

51409696 is a wasteful number, since it uses less digits than its factorization.

51409696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123604 (or 123596 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 51409696 is about 7170.0555088507. The cubic root of 51409696 is about 371.8333550427.

The spelling of 51409696 in words is "fifty-one million, four hundred nine thousand, six hundred ninety-six".