51725033 has 8 divisors (see below), whose sum is σ = 54849960. Its totient is φ = 48609280.

The previous prime is 51725017. The next prime is 51725057. The reversal of 51725033 is 33052715.

It can be written as a sum of positive squares in 4 ways, for example, as 22963264 + 28761769 = 4792^2 + 5363^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51725033 - 2⁴ = 51725017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51724993 and 51725011.

It is not an unprimeable number, because it can be changed into a prime (51725633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11873 + ... + 15633.

It is an arithmetic number, because the mean of its divisors is an integer number (6856245).

Almost surely, 2^51725033 is an apocalyptic number.

It is an amenable number.

51725033 is a deficient number, since it is larger than the sum of its proper divisors (3124927).

51725033 is a wasteful number, since it uses less digits than its factorization.

51725033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4587.

The product of its (nonzero) digits is 3150, while the sum is 26.

The square root of 51725033 is about 7192.0117491561. The cubic root of 51725033 is about 372.5920568839.

Adding to 51725033 its reverse (33052715), we get a palindrome (84777748).

The spelling of 51725033 in words is "fifty-one million, seven hundred twenty-five thousand, thirty-three".