51406316 has 12 divisors (see below), whose sum is σ = 96881232. Its totient is φ = 23725968.

The previous prime is 51406309. The next prime is 51406319. The reversal of 51406316 is 61360415.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (51406319) 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, 494240 + ... + 494343.

It is an arithmetic number, because the mean of its divisors is an integer number (8073436).

Almost surely, 2^51406316 is an apocalyptic number.

It is an amenable number.

51406316 is a deficient number, since it is larger than the sum of its proper divisors (45474916).

51406316 is a wasteful number, since it uses less digits than its factorization.

51406316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 988600 (or 988598 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 51406316 is about 7169.8198024776. The cubic root of 51406316 is about 371.8252059685.

The spelling of 51406316 in words is "fifty-one million, four hundred six thousand, three hundred sixteen".