56749741 has 2 divisors, whose sum is σ = 56749742. Its totient is φ = 56749740.

The previous prime is 56749739. The next prime is 56749801. The reversal of 56749741 is 14794765.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56700900 + 48841 = 7530^2 + 221^2 .

It is a cyclic number.

It is not a de Polignac number, because 56749741 - 2¹ = 56749739 is a prime.

Together with 56749739, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56749711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28374870 + 28374871.

It is an arithmetic number, because the mean of its divisors is an integer number (28374871).

Almost surely, 2^56749741 is an apocalyptic number.

It is an amenable number.

56749741 is a deficient number, since it is larger than the sum of its proper divisors (1).

56749741 is an equidigital number, since it uses as much as digits as its factorization.

56749741 is an evil number, because the sum of its binary digits is even.

The product of its digits is 211680, while the sum is 43.

The square root of 56749741 is about 7533.2423962063. The cubic root of 56749741 is about 384.2860575577.

The spelling of 56749741 in words is "fifty-six million, seven hundred forty-nine thousand, seven hundred forty-one".