51455297 has 2 divisors, whose sum is σ = 51455298. Its totient is φ = 51455296.

The previous prime is 51455293. The next prime is 51455321. The reversal of 51455297 is 79255415.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50751376 + 703921 = 7124^2 + 839^2 .

It is a cyclic number.

It is not a de Polignac number, because 51455297 - 2² = 51455293 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51455297.

It is not a weakly prime, because it can be changed into another prime (51455293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25727648 + 25727649.

It is an arithmetic number, because the mean of its divisors is an integer number (25727649).

Almost surely, 2^51455297 is an apocalyptic number.

It is an amenable number.

51455297 is a deficient number, since it is larger than the sum of its proper divisors (1).

51455297 is an equidigital number, since it uses as much as digits as its factorization.

51455297 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 63000, while the sum is 38.

The square root of 51455297 is about 7173.2347654318. The cubic root of 51455297 is about 371.9432627270.

The spelling of 51455297 in words is "fifty-one million, four hundred fifty-five thousand, two hundred ninety-seven".