56437783 has 2 divisors, whose sum is σ = 56437784. Its totient is φ = 56437782.

The previous prime is 56437769. The next prime is 56437861. The reversal of 56437783 is 38773465.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56437783 - 2⁵ = 56437751 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56437723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28218891 + 28218892.

It is an arithmetic number, because the mean of its divisors is an integer number (28218892).

Almost surely, 2^56437783 is an apocalyptic number.

56437783 is a deficient number, since it is larger than the sum of its proper divisors (1).

56437783 is an equidigital number, since it uses as much as digits as its factorization.

56437783 is an evil number, because the sum of its binary digits is even.

The product of its digits is 423360, while the sum is 43.

The square root of 56437783 is about 7512.5084359354. The cubic root of 56437783 is about 383.5806126424.

The spelling of 56437783 in words is "fifty-six million, four hundred thirty-seven thousand, seven hundred eighty-three".