51244425 has 36 divisors (see below), whose sum is σ = 96623280. Its totient is φ = 25889760.

The previous prime is 51244399. The next prime is 51244447. The reversal of 51244425 is 52444215.

It is not a de Polignac number, because 51244425 - 2¹³ = 51236233 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1719 + ... + 10268.

It is an arithmetic number, because the mean of its divisors is an integer number (2683980).

Almost surely, 2^51244425 is an apocalyptic number.

It is an amenable number.

51244425 is a deficient number, since it is larger than the sum of its proper divisors (45378855).

51244425 is a wasteful number, since it uses less digits than its factorization.

51244425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12022 (or 12014 counting only the distinct ones).

The product of its digits is 6400, while the sum is 27.

The square root of 51244425 is about 7158.5211461586. The cubic root of 51244425 is about 371.4344728211.

The spelling of 51244425 in words is "fifty-one million, two hundred forty-four thousand, four hundred twenty-five".