51492697 has 2 divisors, whose sum is σ = 51492698. Its totient is φ = 51492696.

The previous prime is 51492671. The next prime is 51492709. The reversal of 51492697 is 79629415.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50751376 + 741321 = 7124^2 + 861^2 .

It is a cyclic number.

It is not a de Polignac number, because 51492697 - 2¹⁹ = 50968409 is a prime.

It is not a weakly prime, because it can be changed into another prime (51492647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25746348 + 25746349.

It is an arithmetic number, because the mean of its divisors is an integer number (25746349).

Almost surely, 2^51492697 is an apocalyptic number.

It is an amenable number.

51492697 is a deficient number, since it is larger than the sum of its proper divisors (1).

51492697 is an equidigital number, since it uses as much as digits as its factorization.

51492697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 43.

The square root of 51492697 is about 7175.8412050435. The cubic root of 51492697 is about 372.0333558752.

The spelling of 51492697 in words is "fifty-one million, four hundred ninety-two thousand, six hundred ninety-seven".