51459157 has 2 divisors, whose sum is σ = 51459158. Its totient is φ = 51459156.

The previous prime is 51459113. The next prime is 51459169. The reversal of 51459157 is 75195415.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34739236 + 16719921 = 5894^2 + 4089^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51459157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51459557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25729578 + 25729579.

It is an arithmetic number, because the mean of its divisors is an integer number (25729579).

Almost surely, 2^51459157 is an apocalyptic number.

It is an amenable number.

51459157 is a deficient number, since it is larger than the sum of its proper divisors (1).

51459157 is an equidigital number, since it uses as much as digits as its factorization.

51459157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31500, while the sum is 37.

The square root of 51459157 is about 7173.5038161278. The cubic root of 51459157 is about 371.9525631307.

The spelling of 51459157 in words is "fifty-one million, four hundred fifty-nine thousand, one hundred fifty-seven".