51251359 has 2 divisors, whose sum is σ = 51251360. Its totient is φ = 51251358.

The previous prime is 51251287. The next prime is 51251377. The reversal of 51251359 is 95315215.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51251359 - 2¹³ = 51243167 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51251359.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51252359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25625679 + 25625680.

It is an arithmetic number, because the mean of its divisors is an integer number (25625680).

Almost surely, 2^51251359 is an apocalyptic number.

51251359 is a deficient number, since it is larger than the sum of its proper divisors (1).

51251359 is an equidigital number, since it uses as much as digits as its factorization.

51251359 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6750, while the sum is 31.

The square root of 51251359 is about 7159.0054476862. The cubic root of 51251359 is about 371.4512252807.

The spelling of 51251359 in words is "fifty-one million, two hundred fifty-one thousand, three hundred fifty-nine".