52999143 has 4 divisors (see below), whose sum is σ = 70665528. Its totient is φ = 35332760.

The previous prime is 52999139. The next prime is 52999159. The reversal of 52999143 is 34199925.

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 52999143 - 2² = 52999139 is a prime.

It is a super-3 number, since 3×52999143³ (a number of 24 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 52999095 and 52999104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52999343) 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, 8833188 + ... + 8833193.

It is an arithmetic number, because the mean of its divisors is an integer number (17666382).

Almost surely, 2^52999143 is an apocalyptic number.

52999143 is a deficient number, since it is larger than the sum of its proper divisors (17666385).

52999143 is a wasteful number, since it uses less digits than its factorization.

52999143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17666384.

The product of its digits is 87480, while the sum is 42.

The square root of 52999143 is about 7280.0510300409. The cubic root of 52999143 is about 375.6265507968.

The spelling of 52999143 in words is "fifty-two million, nine hundred ninety-nine thousand, one hundred forty-three".