56021153 has 2 divisors, whose sum is σ = 56021154. Its totient is φ = 56021152.

The previous prime is 56021143. The next prime is 56021167. The reversal of 56021153 is 35112065.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28058209 + 27962944 = 5297^2 + 5288^2 .

It is a cyclic number.

It is not a de Polignac number, because 56021153 - 2²⁴ = 39243937 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (56021143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28010576 + 28010577.

It is an arithmetic number, because the mean of its divisors is an integer number (28010577).

Almost surely, 2^56021153 is an apocalyptic number.

It is an amenable number.

56021153 is a deficient number, since it is larger than the sum of its proper divisors (1).

56021153 is an equidigital number, since it uses as much as digits as its factorization.

56021153 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 56021153 is about 7484.7279843692. The cubic root of 56021153 is about 382.6344021967.

The spelling of 56021153 in words is "fifty-six million, twenty-one thousand, one hundred fifty-three".