52353540 has 120 divisors (see below), whose sum is σ = 173987352. Its totient is φ = 13132800.

The previous prime is 52353529. The next prime is 52353577. The reversal of 52353540 is 4535325.

It can be written as a sum of positive squares in 4 ways, for example, as 2566404 + 49787136 = 1602^2 + 7056^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 26590 + ... + 28490.

Almost surely, 2^52353540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52353540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86993676).

52353540 is an abundant number, since it is smaller than the sum of its proper divisors (121633812).

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

52353540 is a wasteful number, since it uses less digits than its factorization.

52353540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1939 (or 1928 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 27.

The square root of 52353540 is about 7235.5746143620. The cubic root of 52353540 is about 374.0950981635.

Adding to 52353540 its reverse (4535325), we get a palindrome (56888865).

The spelling of 52353540 in words is "fifty-two million, three hundred fifty-three thousand, five hundred forty".