56919133 has 2 divisors, whose sum is σ = 56919134. Its totient is φ = 56919132.

The previous prime is 56919127. The next prime is 56919157. The reversal of 56919133 is 33191965.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53392249 + 3526884 = 7307^2 + 1878^2 .

It is a cyclic number.

It is not a de Polignac number, because 56919133 - 2⁵ = 56919101 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56919092 and 56919101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56919103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28459566 + 28459567.

It is an arithmetic number, because the mean of its divisors is an integer number (28459567).

Almost surely, 2^56919133 is an apocalyptic number.

It is an amenable number.

56919133 is a deficient number, since it is larger than the sum of its proper divisors (1).

56919133 is an equidigital number, since it uses as much as digits as its factorization.

56919133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21870, while the sum is 37.

The square root of 56919133 is about 7544.4769865114. The cubic root of 56919133 is about 384.6680288976.

The spelling of 56919133 in words is "fifty-six million, nine hundred nineteen thousand, one hundred thirty-three".