51256151 has 2 divisors, whose sum is σ = 51256152. Its totient is φ = 51256150.

The previous prime is 51256099. The next prime is 51256169. The reversal of 51256151 is 15165215.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51256151 - 2⁶ = 51256087 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51256151.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51256171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25628075 + 25628076.

It is an arithmetic number, because the mean of its divisors is an integer number (25628076).

Almost surely, 2^51256151 is an apocalyptic number.

51256151 is a deficient number, since it is larger than the sum of its proper divisors (1).

51256151 is an equidigital number, since it uses as much as digits as its factorization.

51256151 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1500, while the sum is 26.

The square root of 51256151 is about 7159.3401232236. The cubic root of 51256151 is about 371.4628018115.

The spelling of 51256151 in words is "fifty-one million, two hundred fifty-six thousand, one hundred fifty-one".