51885151 has 2 divisors, whose sum is σ = 51885152. Its totient is φ = 51885150.

The previous prime is 51885083. The next prime is 51885157. The reversal of 51885151 is 15158815.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51885151 - 2⁷ = 51885023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51885157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25942575 + 25942576.

It is an arithmetic number, because the mean of its divisors is an integer number (25942576).

Almost surely, 2^51885151 is an apocalyptic number.

51885151 is a deficient number, since it is larger than the sum of its proper divisors (1).

51885151 is an equidigital number, since it uses as much as digits as its factorization.

51885151 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8000, while the sum is 34.

The square root of 51885151 is about 7203.1348036810. The cubic root of 51885151 is about 372.9761213501.

The spelling of 51885151 in words is "fifty-one million, eight hundred eighty-five thousand, one hundred fifty-one".