51532697 has 2 divisors, whose sum is σ = 51532698. Its totient is φ = 51532696.

The previous prime is 51532669. The next prime is 51532709. The reversal of 51532697 is 79623515.

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., 45981961 + 5550736 = 6781^2 + 2356^2 .

It is a cyclic number.

It is not a de Polignac number, because 51532697 - 2⁸ = 51532441 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51532697.

It is not a weakly prime, because it can be changed into another prime (51562697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25766348 + 25766349.

It is an arithmetic number, because the mean of its divisors is an integer number (25766349).

Almost surely, 2^51532697 is an apocalyptic number.

It is an amenable number.

51532697 is a deficient number, since it is larger than the sum of its proper divisors (1).

51532697 is an equidigital number, since it uses as much as digits as its factorization.

51532697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56700, while the sum is 38.

The square root of 51532697 is about 7178.6277936664. The cubic root of 51532697 is about 372.1296639178.

The spelling of 51532697 in words is "fifty-one million, five hundred thirty-two thousand, six hundred ninety-seven".