56121053 has 2 divisors, whose sum is σ = 56121054. Its totient is φ = 56121052.

The previous prime is 56121017. The next prime is 56121059. The reversal of 56121053 is 35012165.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51294244 + 4826809 = 7162^2 + 2197^2 .

It is a cyclic number.

It is not a de Polignac number, because 56121053 - 2¹⁴ = 56104669 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56121059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28060526 + 28060527.

It is an arithmetic number, because the mean of its divisors is an integer number (28060527).

Almost surely, 2^56121053 is an apocalyptic number.

It is an amenable number.

56121053 is a deficient number, since it is larger than the sum of its proper divisors (1).

56121053 is an equidigital number, since it uses as much as digits as its factorization.

56121053 is an odious number, because the sum of its binary digits is odd.

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

The square root of 56121053 is about 7491.3986010624. The cubic root of 56121053 is about 382.8617120340.

The spelling of 56121053 in words is "fifty-six million, one hundred twenty-one thousand, fifty-three".