52031140 has 36 divisors (see below), whose sum is σ = 127107036. Its totient is φ = 17838912.

The previous prime is 52031117. The next prime is 52031149. The reversal of 52031140 is 4113025.

It can be written as a sum of positive squares in 2 ways, for example, as 29506624 + 22524516 = 5432^2 + 4746^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52031149) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25567 + ... + 27526.

It is an arithmetic number, because the mean of its divisors is an integer number (3530751).

Almost surely, 2^52031140 is an apocalyptic number.

It is an amenable number.

52031140 is an abundant number, since it is smaller than the sum of its proper divisors (75075896).

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

52031140 is a wasteful number, since it uses less digits than its factorization.

52031140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53116 (or 53107 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 52031140 is about 7213.2613982858. The cubic root of 52031140 is about 373.3256074790.

Adding to 52031140 its reverse (4113025), we get a palindrome (56144165).

The spelling of 52031140 in words is "fifty-two million, thirty-one thousand, one hundred forty".