51250679 has 4 divisors (see below), whose sum is σ = 51313776. Its totient is φ = 51187584.

The previous prime is 51250669. The next prime is 51250721. The reversal of 51250679 is 97605215.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51250679 - 2⁴ = 51250663 is a prime.

It is a super-2 number, since 2×51250679² = 5253264195922082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51250649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30314 + ... + 31959.

It is an arithmetic number, because the mean of its divisors is an integer number (12828444).

Almost surely, 2^51250679 is an apocalyptic number.

51250679 is a deficient number, since it is larger than the sum of its proper divisors (63097).

51250679 is an equidigital number, since it uses as much as digits as its factorization.

51250679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63096.

The product of its (nonzero) digits is 18900, while the sum is 35.

The square root of 51250679 is about 7158.9579548982. The cubic root of 51250679 is about 371.4495824758.

The spelling of 51250679 in words is "fifty-one million, two hundred fifty thousand, six hundred seventy-nine".