52142719 has 4 divisors (see below), whose sum is σ = 52444296. Its totient is φ = 51841144.

The previous prime is 52142711. The next prime is 52142729. The reversal of 52142719 is 91724125.

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 52142719 - 2³ = 52142711 is a prime.

It is a super-2 number, since 2×52142719² = 5437726289425922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52142711) 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, 150529 + ... + 150874.

It is an arithmetic number, because the mean of its divisors is an integer number (13111074).

Almost surely, 2^52142719 is an apocalyptic number.

52142719 is a deficient number, since it is larger than the sum of its proper divisors (301577).

52142719 is a wasteful number, since it uses less digits than its factorization.

52142719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301576.

The product of its digits is 5040, while the sum is 31.

The square root of 52142719 is about 7220.9915524116. The cubic root of 52142719 is about 373.5922782795.

The spelling of 52142719 in words is "fifty-two million, one hundred forty-two thousand, seven hundred nineteen".