56418511 has 2 divisors, whose sum is σ = 56418512. Its totient is φ = 56418510.

The previous prime is 56418487. The next prime is 56418533. The reversal of 56418511 is 11581465.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56418511 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56418541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28209255 + 28209256.

It is an arithmetic number, because the mean of its divisors is an integer number (28209256).

Almost surely, 2^56418511 is an apocalyptic number.

56418511 is a deficient number, since it is larger than the sum of its proper divisors (1).

56418511 is an equidigital number, since it uses as much as digits as its factorization.

56418511 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4800, while the sum is 31.

The square root of 56418511 is about 7511.2256656287. The cubic root of 56418511 is about 383.5369468168.

Adding to 56418511 its reverse (11581465), we get a palindrome (67999976).

The spelling of 56418511 in words is "fifty-six million, four hundred eighteen thousand, five hundred eleven".