56804497 has 8 divisors (see below), whose sum is σ = 60481512. Its totient is φ = 53164800.

The previous prime is 56804491. The next prime is 56804519. The reversal of 56804497 is 79440865.

It can be written as a sum of positive squares in 4 ways, for example, as 389376 + 56415121 = 624^2 + 7511^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56804497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56804491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6154 + ... + 12307.

It is an arithmetic number, because the mean of its divisors is an integer number (7560189).

Almost surely, 2^56804497 is an apocalyptic number.

56804497 is the 6154-th pentagonal number.

It is an amenable number.

56804497 is a deficient number, since it is larger than the sum of its proper divisors (3677015).

56804497 is a wasteful number, since it uses less digits than its factorization.

56804497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18659.

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 56804497 is about 7536.8758116344. The cubic root of 56804497 is about 384.4096129140.

The spelling of 56804497 in words is "fifty-six million, eight hundred four thousand, four hundred ninety-seven".