52653140 has 12 divisors (see below), whose sum is σ = 110571636. Its totient is φ = 21061248.

The previous prime is 52653137. The next prime is 52653169. The reversal of 52653140 is 4135625.

It can be written as a sum of positive squares in 2 ways, for example, as 11102224 + 41550916 = 3332^2 + 6446^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1316309 + ... + 1316348.

It is an arithmetic number, because the mean of its divisors is an integer number (9214303).

Almost surely, 2^52653140 is an apocalyptic number.

It is an amenable number.

52653140 is an abundant number, since it is smaller than the sum of its proper divisors (57918496).

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

52653140 is a wasteful number, since it uses less digits than its factorization.

52653140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2632666 (or 2632664 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 52653140 is about 7256.2483419464. The cubic root of 52653140 is about 374.8073440030.

Adding to 52653140 its reverse (4135625), we get a palindrome (56788765).

The spelling of 52653140 in words is "fifty-two million, six hundred fifty-three thousand, one hundred forty".