51611159 has 2 divisors, whose sum is σ = 51611160. Its totient is φ = 51611158.

The previous prime is 51611141. The next prime is 51611171. The reversal of 51611159 is 95111615.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51611159 - 2²⁴ = 34833943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51611059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25805579 + 25805580.

It is an arithmetic number, because the mean of its divisors is an integer number (25805580).

Almost surely, 2^51611159 is an apocalyptic number.

51611159 is a deficient number, since it is larger than the sum of its proper divisors (1).

51611159 is an equidigital number, since it uses as much as digits as its factorization.

51611159 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1350, while the sum is 29.

The square root of 51611159 is about 7184.0906870668. The cubic root of 51611159 is about 372.3184323002.

The spelling of 51611159 in words is "fifty-one million, six hundred eleven thousand, one hundred fifty-nine".