52112140 has 24 divisors (see below), whose sum is σ = 115873632. Its totient is φ = 19618560.

The previous prime is 52112119. The next prime is 52112149. The reversal of 52112140 is 4121125.

It is not an unprimeable number, because it can be changed into a prime (52112149) 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, 76296 + ... + 76975.

It is an arithmetic number, because the mean of its divisors is an integer number (4828068).

Almost surely, 2^52112140 is an apocalyptic number.

It is an amenable number.

52112140 is an abundant number, since it is smaller than the sum of its proper divisors (63761492).

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

52112140 is a wasteful number, since it uses less digits than its factorization.

52112140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153297 (or 153295 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 52112140 is about 7218.8738733960. The cubic root of 52112140 is about 373.5192331677.

Adding to 52112140 its reverse (4121125), we get a palindrome (56233265).

The spelling of 52112140 in words is "fifty-two million, one hundred twelve thousand, one hundred forty".