51975799 has 2 divisors, whose sum is σ = 51975800. Its totient is φ = 51975798.

The previous prime is 51975797. The next prime is 51975821. The reversal of 51975799 is 99757915.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51975799 - 2¹ = 51975797 is a prime.

Together with 51975797, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51975793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25987899 + 25987900.

It is an arithmetic number, because the mean of its divisors is an integer number (25987900).

Almost surely, 2^51975799 is an apocalyptic number.

51975799 is a deficient number, since it is larger than the sum of its proper divisors (1).

51975799 is an equidigital number, since it uses as much as digits as its factorization.

51975799 is an evil number, because the sum of its binary digits is even.

The product of its digits is 893025, while the sum is 52.

The square root of 51975799 is about 7209.4243182102. The cubic root of 51975799 is about 373.1932025282.

The spelling of 51975799 in words is "fifty-one million, nine hundred seventy-five thousand, seven hundred ninety-nine".