51495297 has 16 divisors (see below), whose sum is σ = 78569472. Its totient is φ = 29388240.

The previous prime is 51495293. The next prime is 51495307. The reversal of 51495297 is 79259415.

It is not a de Polignac number, because 51495297 - 2² = 51495293 is a prime.

It is a super-2 number, since 2×51495297² = 5303531226236418, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51495293) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30058 + ... + 31724.

It is an arithmetic number, because the mean of its divisors is an integer number (4910592).

Almost surely, 2^51495297 is an apocalyptic number.

It is an amenable number.

51495297 is a deficient number, since it is larger than the sum of its proper divisors (27074175).

51495297 is a wasteful number, since it uses less digits than its factorization.

51495297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3148.

The product of its digits is 113400, while the sum is 42.

The square root of 51495297 is about 7176.0223661859. The cubic root of 51495297 is about 372.0396174132.

The spelling of 51495297 in words is "fifty-one million, four hundred ninety-five thousand, two hundred ninety-seven".