52121319 has 4 divisors (see below), whose sum is σ = 69495096. Its totient is φ = 34747544.

The previous prime is 52121317. The next prime is 52121327. The reversal of 52121319 is 91312125.

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

It is a cyclic number.

It is not a de Polignac number, because 52121319 - 2¹ = 52121317 is a prime.

It is a super-2 number, since 2×52121319² = 5433263788599522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52121317) 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, 8686884 + ... + 8686889.

It is an arithmetic number, because the mean of its divisors is an integer number (17373774).

Almost surely, 2^52121319 is an apocalyptic number.

52121319 is a deficient number, since it is larger than the sum of its proper divisors (17373777).

52121319 is a wasteful number, since it uses less digits than its factorization.

52121319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17373776.

The product of its digits is 540, while the sum is 24.

The square root of 52121319 is about 7219.5096093848. The cubic root of 52121319 is about 373.5411623622.

The spelling of 52121319 in words is "fifty-two million, one hundred twenty-one thousand, three hundred nineteen".