52215351 has 4 divisors (see below), whose sum is σ = 69620472. Its totient is φ = 34810232.

The previous prime is 52215343. The next prime is 52215409. The reversal of 52215351 is 15351225.

It is a happy number.

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 52215351 - 2³ = 52215343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52215851) 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, 8702556 + ... + 8702561.

It is an arithmetic number, because the mean of its divisors is an integer number (17405118).

Almost surely, 2^52215351 is an apocalyptic number.

52215351 is a deficient number, since it is larger than the sum of its proper divisors (17405121).

52215351 is a wasteful number, since it uses less digits than its factorization.

52215351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17405120.

The product of its digits is 1500, while the sum is 24.

The square root of 52215351 is about 7226.0190284831. The cubic root of 52215351 is about 373.7656624421.

Adding to 52215351 its reverse (15351225), we get a palindrome (67566576).

The spelling of 52215351 in words is "fifty-two million, two hundred fifteen thousand, three hundred fifty-one".