56497447 has 2 divisors, whose sum is σ = 56497448. Its totient is φ = 56497446.

The previous prime is 56497429. The next prime is 56497471. The reversal of 56497447 is 74479465.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56497447 - 2¹⁵ = 56464679 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56497397 and 56497406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56497247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28248723 + 28248724.

It is an arithmetic number, because the mean of its divisors is an integer number (28248724).

Almost surely, 2^56497447 is an apocalyptic number.

56497447 is a deficient number, since it is larger than the sum of its proper divisors (1).

56497447 is an equidigital number, since it uses as much as digits as its factorization.

56497447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 846720, while the sum is 46.

The square root of 56497447 is about 7516.4783642341. The cubic root of 56497447 is about 383.7157342604.

It can be divided in two parts, 56 and 497447, that added together give a triangular number (497503 = T₉₉₇).

The spelling of 56497447 in words is "fifty-six million, four hundred ninety-seven thousand, four hundred forty-seven".