51153133 has 4 divisors (see below), whose sum is σ = 51201280. Its totient is φ = 51104988.

The previous prime is 51153107. The next prime is 51153161. The reversal of 51153133 is 33135115.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 51153133 - 2¹⁷ = 51022061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51153103) 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, 22443 + ... + 24616.

It is an arithmetic number, because the mean of its divisors is an integer number (12800320).

Almost surely, 2^51153133 is an apocalyptic number.

It is an amenable number.

51153133 is a deficient number, since it is larger than the sum of its proper divisors (48147).

51153133 is a wasteful number, since it uses less digits than its factorization.

51153133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48146.

The product of its digits is 675, while the sum is 22.

The square root of 51153133 is about 7152.1418470274. The cubic root of 51153133 is about 371.2137714008.

Adding to 51153133 its reverse (33135115), we get a palindrome (84288248).

The spelling of 51153133 in words is "fifty-one million, one hundred fifty-three thousand, one hundred thirty-three".