52115312 has 40 divisors (see below), whose sum is σ = 104100480. Its totient is φ = 25260480.

The previous prime is 52115311. The next prime is 52115317. The reversal of 52115312 is 21351125.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52115311) 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, 144989 + ... + 145347.

It is an arithmetic number, because the mean of its divisors is an integer number (2602512).

Almost surely, 2^52115312 is an apocalyptic number.

It is an amenable number.

52115312 is a deficient number, since it is larger than the sum of its proper divisors (51985168).

52115312 is a wasteful number, since it uses less digits than its factorization.

52115312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621 (or 615 counting only the distinct ones).

The product of its digits is 300, while the sum is 20.

The square root of 52115312 is about 7219.0935719105. The cubic root of 52115312 is about 373.5268115616.

Adding to 52115312 its reverse (21351125), we get a palindrome (73466437).

The spelling of 52115312 in words is "fifty-two million, one hundred fifteen thousand, three hundred twelve".