52780315 has 32 divisors (see below), whose sum is σ = 75841920. Its totient is φ = 34504704.

The previous prime is 52780313. The next prime is 52780327. The reversal of 52780315 is 51308725.

It is a cyclic number.

It is not a de Polignac number, because 52780315 - 2¹ = 52780313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52780313) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 68251 + ... + 69019.

It is an arithmetic number, because the mean of its divisors is an integer number (2370060).

Almost surely, 2^52780315 is an apocalyptic number.

52780315 is a deficient number, since it is larger than the sum of its proper divisors (23061605).

52780315 is a wasteful number, since it uses less digits than its factorization.

52780315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 871.

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 52780315 is about 7265.0061940786. The cubic root of 52780315 is about 375.1088632086.

The spelling of 52780315 in words is "fifty-two million, seven hundred eighty thousand, three hundred fifteen".