52909143 has 32 divisors (see below), whose sum is σ = 82947072. Its totient is φ = 29376000.

The previous prime is 52909139. The next prime is 52909187. The reversal of 52909143 is 34190925.

It is not a de Polignac number, because 52909143 - 2² = 52909139 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52909123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 131743 + ... + 132143.

It is an arithmetic number, because the mean of its divisors is an integer number (2592096).

Almost surely, 2^52909143 is an apocalyptic number.

52909143 is a deficient number, since it is larger than the sum of its proper divisors (30037929).

52909143 is a wasteful number, since it uses less digits than its factorization.

52909143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575.

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 52909143 is about 7273.8671282888. The cubic root of 52909143 is about 375.4138080886.

The spelling of 52909143 in words is "fifty-two million, nine hundred nine thousand, one hundred forty-three".