56722469 has 2 divisors, whose sum is σ = 56722470. Its totient is φ = 56722468.

The previous prime is 56722453. The next prime is 56722481. The reversal of 56722469 is 96422765.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40157569 + 16564900 = 6337^2 + 4070^2 .

It is a cyclic number.

It is not a de Polignac number, because 56722469 - 2⁴ = 56722453 is a prime.

It is a super-2 number, since 2×56722469² = 6434876978911922, 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 (56722499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28361234 + 28361235.

It is an arithmetic number, because the mean of its divisors is an integer number (28361235).

Almost surely, 2^56722469 is an apocalyptic number.

It is an amenable number.

56722469 is a deficient number, since it is larger than the sum of its proper divisors (1).

56722469 is an equidigital number, since it uses as much as digits as its factorization.

56722469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 41.

The square root of 56722469 is about 7531.4320683387. The cubic root of 56722469 is about 384.2244894140.

The spelling of 56722469 in words is "fifty-six million, seven hundred twenty-two thousand, four hundred sixty-nine".