52143918 has 16 divisors (see below), whose sum is σ = 104564736. Its totient is φ = 17335160.

The previous prime is 52143901. The next prime is 52143919. The reversal of 52143918 is 81934125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52143919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9048 + ... + 13643.

It is an arithmetic number, because the mean of its divisors is an integer number (6535296).

Almost surely, 2^52143918 is an apocalyptic number.

52143918 is an abundant number, since it is smaller than the sum of its proper divisors (52420818).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52143918 is a wasteful number, since it uses less digits than its factorization.

52143918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23079.

The product of its digits is 8640, while the sum is 33.

The square root of 52143918 is about 7221.0745737736. The cubic root of 52143918 is about 373.5951417902.

The spelling of 52143918 in words is "fifty-two million, one hundred forty-three thousand, nine hundred eighteen".