51325423 has 2 divisors, whose sum is σ = 51325424. Its totient is φ = 51325422.

The previous prime is 51325411. The next prime is 51325433. The reversal of 51325423 is 32452315.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51325423 - 2²¹ = 49228271 is a prime.

It is a super-2 number, since 2×51325423² = 5268598092257858, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51325433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25662711 + 25662712.

It is an arithmetic number, because the mean of its divisors is an integer number (25662712).

Almost surely, 2^51325423 is an apocalyptic number.

51325423 is a deficient number, since it is larger than the sum of its proper divisors (1).

51325423 is an equidigital number, since it uses as much as digits as its factorization.

51325423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3600, while the sum is 25.

The square root of 51325423 is about 7164.1763657799. The cubic root of 51325423 is about 371.6300688111.

Adding to 51325423 its reverse (32452315), we get a palindrome (83777738).

The spelling of 51325423 in words is "fifty-one million, three hundred twenty-five thousand, four hundred twenty-three".