56253787 has 2 divisors, whose sum is σ = 56253788. Its totient is φ = 56253786.

The previous prime is 56253751. The next prime is 56253811. The reversal of 56253787 is 78735265.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56253787 is a prime.

It is not a weakly prime, because it can be changed into another prime (56253287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28126893 + 28126894.

It is an arithmetic number, because the mean of its divisors is an integer number (28126894).

Almost surely, 2^56253787 is an apocalyptic number.

56253787 is a deficient number, since it is larger than the sum of its proper divisors (1).

56253787 is an equidigital number, since it uses as much as digits as its factorization.

56253787 is an evil number, because the sum of its binary digits is even.

The product of its digits is 352800, while the sum is 43.

The square root of 56253787 is about 7500.2524624175. The cubic root of 56253787 is about 383.1633145633.

The spelling of 56253787 in words is "fifty-six million, two hundred fifty-three thousand, seven hundred eighty-seven".