51425433 has 6 divisors (see below), whose sum is σ = 74281194. Its totient is φ = 34283616.

The previous prime is 51425431. The next prime is 51425441. The reversal of 51425433 is 33452415.

It can be written as a sum of positive squares in only one way, i.e., 28643904 + 22781529 = 5352^2 + 4773^2 .

It is not a de Polignac number, because 51425433 - 2¹ = 51425431 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51425397 and 51425406.

It is not an unprimeable number, because it can be changed into a prime (51425431) 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, 2856960 + ... + 2856977.

It is an arithmetic number, because the mean of its divisors is an integer number (12380199).

Almost surely, 2^51425433 is an apocalyptic number.

It is an amenable number.

51425433 is a deficient number, since it is larger than the sum of its proper divisors (22855761).

51425433 is a wasteful number, since it uses less digits than its factorization.

51425433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5713943 (or 5713940 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 51425433 is about 7171.1528361903. The cubic root of 51425433 is about 371.8712917550.

Adding to 51425433 its reverse (33452415), we get a palindrome (84877848).

The spelling of 51425433 in words is "fifty-one million, four hundred twenty-five thousand, four hundred thirty-three".