51314425 has 6 divisors (see below), whose sum is σ = 63629918. Its totient is φ = 41051520.

The previous prime is 51314423. The next prime is 51314447. The reversal of 51314425 is 52441315.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 6411024 + 44903401 = 2532^2 + 6701^2 .

It is not a de Polignac number, because 51314425 - 2¹ = 51314423 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 2052577 = 51314425 / (5 + 1 + 3 + 1 + 4 + 4 + 2 + 5).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51314425.

It is not an unprimeable number, because it can be changed into a prime (51314423) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1026264 + ... + 1026313.

Almost surely, 2^51314425 is an apocalyptic number.

It is an amenable number.

51314425 is a deficient number, since it is larger than the sum of its proper divisors (12315493).

51314425 is a wasteful number, since it uses less digits than its factorization.

51314425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2052587 (or 2052582 counting only the distinct ones).

The product of its digits is 2400, while the sum is 25.

The square root of 51314425 is about 7163.4087556135. The cubic root of 51314425 is about 371.6035226459.

It can be divided in two parts, 5 and 1314425, that multiplied together give a triangular number (6572125 = T₃₆₂₅).

The spelling of 51314425 in words is "fifty-one million, three hundred fourteen thousand, four hundred twenty-five".