51372469 has 2 divisors, whose sum is σ = 51372470. Its totient is φ = 51372468.

The previous prime is 51372403. The next prime is 51372473. The reversal of 51372469 is 96427315.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49871844 + 1500625 = 7062^2 + 1225^2 .

It is a cyclic number.

It is not a de Polignac number, because 51372469 - 2⁷ = 51372341 is a prime.

It is a super-2 number, since 2×51372469² = 5278261142311922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51370469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25686234 + 25686235.

It is an arithmetic number, because the mean of its divisors is an integer number (25686235).

Almost surely, 2^51372469 is an apocalyptic number.

It is an amenable number.

51372469 is a deficient number, since it is larger than the sum of its proper divisors (1).

51372469 is an equidigital number, since it uses as much as digits as its factorization.

51372469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45360, while the sum is 37.

The square root of 51372469 is about 7167.4590337162. The cubic root of 51372469 is about 371.7435822055.

The spelling of 51372469 in words is "fifty-one million, three hundred seventy-two thousand, four hundred sixty-nine".