56563541 has 2 divisors, whose sum is σ = 56563542. Its totient is φ = 56563540.

The previous prime is 56563519. The next prime is 56563553. The reversal of 56563541 is 14536565.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37466641 + 19096900 = 6121^2 + 4370^2 .

It is a cyclic number.

It is not a de Polignac number, because 56563541 - 2¹⁸ = 56301397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56563511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28281770 + 28281771.

It is an arithmetic number, because the mean of its divisors is an integer number (28281771).

Almost surely, 2^56563541 is an apocalyptic number.

It is an amenable number.

56563541 is a deficient number, since it is larger than the sum of its proper divisors (1).

56563541 is an equidigital number, since it uses as much as digits as its factorization.

56563541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54000, while the sum is 35.

The square root of 56563541 is about 7520.8736859490. The cubic root of 56563541 is about 383.8653069449.

The spelling of 56563541 in words is "fifty-six million, five hundred sixty-three thousand, five hundred forty-one".