52199619 has 4 divisors (see below), whose sum is σ = 69599496. Its totient is φ = 34799744.

The previous prime is 52199611. The next prime is 52199621. The reversal of 52199619 is 91699125.

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 52199619 - 2³ = 52199611 is a prime.

It is a super-2 number, since 2×52199619² = 5449600447490322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52199611) 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, 8699934 + ... + 8699939.

It is an arithmetic number, because the mean of its divisors is an integer number (17399874).

Almost surely, 2^52199619 is an apocalyptic number.

52199619 is a deficient number, since it is larger than the sum of its proper divisors (17399877).

52199619 is a wasteful number, since it uses less digits than its factorization.

52199619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17399876.

The product of its digits is 43740, while the sum is 42.

The square root of 52199619 is about 7224.9303802874. The cubic root of 52199619 is about 373.7281212981.

The spelling of 52199619 in words is "fifty-two million, one hundred ninety-nine thousand, six hundred nineteen".