56243351 has 4 divisors (see below), whose sum is σ = 57082872. Its totient is φ = 55403832.

The previous prime is 56243329. The next prime is 56243353. The reversal of 56243351 is 15334265.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15334265 = 5 ⋅3066853.

It is a cyclic number.

It is not a de Polignac number, because 56243351 - 2¹⁰ = 56242327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56243353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 419660 + ... + 419793.

It is an arithmetic number, because the mean of its divisors is an integer number (14270718).

Almost surely, 2^56243351 is an apocalyptic number.

56243351 is a deficient number, since it is larger than the sum of its proper divisors (839521).

56243351 is an equidigital number, since it uses as much as digits as its factorization.

56243351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839520.

The product of its digits is 10800, while the sum is 29.

The square root of 56243351 is about 7499.5567202335. The cubic root of 56243351 is about 383.1396187384.

The spelling of 56243351 in words is "fifty-six million, two hundred forty-three thousand, three hundred fifty-one".