51566153 has 2 divisors, whose sum is σ = 51566154. Its totient is φ = 51566152.

The previous prime is 51566149. The next prime is 51566201. The reversal of 51566153 is 35166515.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26245129 + 25321024 = 5123^2 + 5032^2 .

It is a cyclic number.

It is not a de Polignac number, because 51566153 - 2² = 51566149 is a prime.

It is not a weakly prime, because it can be changed into another prime (51566653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25783076 + 25783077.

It is an arithmetic number, because the mean of its divisors is an integer number (25783077).

Almost surely, 2^51566153 is an apocalyptic number.

It is an amenable number.

51566153 is a deficient number, since it is larger than the sum of its proper divisors (1).

51566153 is an equidigital number, since it uses as much as digits as its factorization.

51566153 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13500, while the sum is 32.

The square root of 51566153 is about 7180.9576659384. The cubic root of 51566153 is about 372.2101776983.

The spelling of 51566153 in words is "fifty-one million, five hundred sixty-six thousand, one hundred fifty-three".