51873751 has 2 divisors, whose sum is σ = 51873752. Its totient is φ = 51873750.

The previous prime is 51873737. The next prime is 51873769. The reversal of 51873751 is 15737815.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51873751 - 2⁵ = 51873719 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 51873751.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51873791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25936875 + 25936876.

It is an arithmetic number, because the mean of its divisors is an integer number (25936876).

Almost surely, 2^51873751 is an apocalyptic number.

51873751 is a deficient number, since it is larger than the sum of its proper divisors (1).

51873751 is an equidigital number, since it uses as much as digits as its factorization.

51873751 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29400, while the sum is 37.

The square root of 51873751 is about 7202.3434380762. The cubic root of 51873751 is about 372.9488030703.

The spelling of 51873751 in words is "fifty-one million, eight hundred seventy-three thousand, seven hundred fifty-one".