51411425 has 12 divisors (see below), whose sum is σ = 68654460. Its totient is φ = 37965120.

The previous prime is 51411419. The next prime is 51411427. The reversal of 51411425 is 52411415.

It can be written as a sum of positive squares in 6 ways, for example, as 6145441 + 45265984 = 2479^2 + 6728^2 .

It is not a de Polignac number, because 51411425 - 2¹² = 51407329 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51411425.

It is not an unprimeable number, because it can be changed into a prime (51411427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78770 + ... + 79419.

It is an arithmetic number, because the mean of its divisors is an integer number (5721205).

Almost surely, 2^51411425 is an apocalyptic number.

It is an amenable number.

51411425 is a deficient number, since it is larger than the sum of its proper divisors (17243035).

51411425 is a wasteful number, since it uses less digits than its factorization.

51411425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158212 (or 158207 counting only the distinct ones).

The product of its digits is 800, while the sum is 23.

The square root of 51411425 is about 7170.1760787306. The cubic root of 51411425 is about 371.8375234695.

The spelling of 51411425 in words is "fifty-one million, four hundred eleven thousand, four hundred twenty-five".