56904769 has 2 divisors, whose sum is σ = 56904770. Its totient is φ = 56904768.

The previous prime is 56904751. The next prime is 56904773. The reversal of 56904769 is 96740965.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29289744 + 27615025 = 5412^2 + 5255^2 .

It is a cyclic number.

It is not a de Polignac number, because 56904769 - 2⁹ = 56904257 is a prime.

It is a super-2 number, since 2×56904769² = 6476305469886722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (56904709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28452384 + 28452385.

It is an arithmetic number, because the mean of its divisors is an integer number (28452385).

Almost surely, 2^56904769 is an apocalyptic number.

It is an amenable number.

56904769 is a deficient number, since it is larger than the sum of its proper divisors (1).

56904769 is an equidigital number, since it uses as much as digits as its factorization.

56904769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 408240, while the sum is 46.

The square root of 56904769 is about 7543.5249717887. The cubic root of 56904769 is about 384.6356681539.

The spelling of 56904769 in words is "fifty-six million, nine hundred four thousand, seven hundred sixty-nine".