51254425 has 6 divisors (see below), whose sum is σ = 63555518. Its totient is φ = 41003520.

The previous prime is 51254407. The next prime is 51254429. The reversal of 51254425 is 52445215.

It can be written as a sum of positive squares in 3 ways, for example, as 9535744 + 41718681 = 3088^2 + 6459^2 .

It is not a de Polignac number, because 51254425 - 2⁷ = 51254297 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51254393 and 51254402.

It is not an unprimeable number, because it can be changed into a prime (51254429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1025064 + ... + 1025113.

Almost surely, 2^51254425 is an apocalyptic number.

It is an amenable number.

51254425 is a deficient number, since it is larger than the sum of its proper divisors (12301093).

51254425 is a wasteful number, since it uses less digits than its factorization.

51254425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2050187 (or 2050182 counting only the distinct ones).

The product of its digits is 8000, while the sum is 28.

The square root of 51254425 is about 7159.2195803733. The cubic root of 51254425 is about 371.4586322176.

The spelling of 51254425 in words is "fifty-one million, two hundred fifty-four thousand, four hundred twenty-five".