51325033 has 4 divisors (see below), whose sum is σ = 51372100. Its totient is φ = 51277968.

The previous prime is 51325019. The next prime is 51325063. The reversal of 51325033 is 33052315.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20766249 + 30558784 = 4557^2 + 5528^2 .

It is a cyclic number.

It is not a de Polignac number, because 51325033 - 2⁹ = 51324521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51324995 and 51325013.

It is not an unprimeable number, because it can be changed into a prime (51325013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21858 + ... + 24091.

It is an arithmetic number, because the mean of its divisors is an integer number (12843025).

Almost surely, 2^51325033 is an apocalyptic number.

It is an amenable number.

51325033 is a deficient number, since it is larger than the sum of its proper divisors (47067).

51325033 is a wasteful number, since it uses less digits than its factorization.

51325033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47066.

The product of its (nonzero) digits is 1350, while the sum is 22.

The square root of 51325033 is about 7164.1491469678. The cubic root of 51325033 is about 371.6291275225.

Adding to 51325033 its reverse (33052315), we get a palindrome (84377348).

The spelling of 51325033 in words is "fifty-one million, three hundred twenty-five thousand, thirty-three".