51152653 has 4 divisors (see below), whose sum is σ = 51197148. Its totient is φ = 51108160.

The previous prime is 51152603. The next prime is 51152663. The reversal of 51152653 is 35625115.

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 49519369 + 1633284 = 7037^2 + 1278^2 .

It is a cyclic number.

It is not a de Polignac number, because 51152653 - 2¹³ = 51144461 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 (51152603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20476 + ... + 22837.

It is an arithmetic number, because the mean of its divisors is an integer number (12799287).

Almost surely, 2^51152653 is an apocalyptic number.

It is an amenable number.

51152653 is a deficient number, since it is larger than the sum of its proper divisors (44495).

51152653 is a wasteful number, since it uses less digits than its factorization.

51152653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44494.

The product of its digits is 4500, while the sum is 28.

The square root of 51152653 is about 7152.1082905672. The cubic root of 51152653 is about 371.2126102913.

Adding to 51152653 its reverse (35625115), we get a palindrome (86777768).

The spelling of 51152653 in words is "fifty-one million, one hundred fifty-two thousand, six hundred fifty-three".