51532469 has 2 divisors, whose sum is σ = 51532470. Its totient is φ = 51532468.

The previous prime is 51532451. The next prime is 51532487. The reversal of 51532469 is 96423515.

It is a balanced prime because it is at equal distance from previous prime (51532451) and next prime (51532487).

It can be written as a sum of positive squares in only one way, i.e., 46758244 + 4774225 = 6838^2 + 2185^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51532469 is a prime.

It is a super-2 number, since 2×51532469² = 5311190722471922, which contains 22 as substring.

It is a Chen prime.

It is equal to p_3087485 and since 51532469 and 3087485 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51532499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25766234 + 25766235.

It is an arithmetic number, because the mean of its divisors is an integer number (25766235).

Almost surely, 2^51532469 is an apocalyptic number.

It is an amenable number.

51532469 is a deficient number, since it is larger than the sum of its proper divisors (1).

51532469 is an equidigital number, since it uses as much as digits as its factorization.

51532469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32400, while the sum is 35.

The square root of 51532469 is about 7178.6119131765. The cubic root of 51532469 is about 372.1291151032.

The spelling of 51532469 in words is "fifty-one million, five hundred thirty-two thousand, four hundred sixty-nine".