51396896 has 12 divisors (see below), whose sum is σ = 101187702. Its totient is φ = 25698432.

The previous prime is 51396893. The next prime is 51396901. The reversal of 51396896 is 69869315.

It can be written as a sum of positive squares in only one way, i.e., 48720400 + 2676496 = 6980^2 + 1636^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 51396896.

It is not an unprimeable number, because it can be changed into a prime (51396893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 803045 + ... + 803108.

Almost surely, 2^51396896 is an apocalyptic number.

It is an amenable number.

51396896 is a deficient number, since it is larger than the sum of its proper divisors (49790806).

51396896 is a wasteful number, since it uses less digits than its factorization.

51396896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1606163 (or 1606155 counting only the distinct ones).

The product of its digits is 349920, while the sum is 47.

The square root of 51396896 is about 7169.1628521048. The cubic root of 51396896 is about 371.8024927582.

The spelling of 51396896 in words is "fifty-one million, three hundred ninety-six thousand, eight hundred ninety-six".