56740261 has 4 divisors (see below), whose sum is σ = 58570624. Its totient is φ = 54909900.

The previous prime is 56740253. The next prime is 56740279. The reversal of 56740261 is 16204765.

It is a happy number.

56740261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 56740261 - 2³ = 56740253 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 1830331 = 56740261 / (5 + 6 + 7 + 4 + 0 + 2 + 6 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56740231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 915135 + ... + 915196.

It is an arithmetic number, because the mean of its divisors is an integer number (14642656).

Almost surely, 2^56740261 is an apocalyptic number.

It is an amenable number.

56740261 is a deficient number, since it is larger than the sum of its proper divisors (1830363).

56740261 is a wasteful number, since it uses less digits than its factorization.

56740261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1830362.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 56740261 is about 7532.6131587916. The cubic root of 56740261 is about 384.2646581372.

The spelling of 56740261 in words is "fifty-six million, seven hundred forty thousand, two hundred sixty-one".