51425351 has 2 divisors, whose sum is σ = 51425352. Its totient is φ = 51425350.

The previous prime is 51425347. The next prime is 51425383. The reversal of 51425351 is 15352415.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51425351 - 2² = 51425347 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51425351.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51425321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25712675 + 25712676.

It is an arithmetic number, because the mean of its divisors is an integer number (25712676).

Almost surely, 2^51425351 is an apocalyptic number.

51425351 is a deficient number, since it is larger than the sum of its proper divisors (1).

51425351 is an equidigital number, since it uses as much as digits as its factorization.

51425351 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3000, while the sum is 26.

The square root of 51425351 is about 7171.1471188367. The cubic root of 51425351 is about 371.8710941002.

Adding to 51425351 its reverse (15352415), we get a palindrome (66777766).

It can be divided in two parts, 514253 and 51, that multiplied together give a triangular number (26226903 = T₇₂₄₂).

The spelling of 51425351 in words is "fifty-one million, four hundred twenty-five thousand, three hundred fifty-one".