52771815 has 48 divisors (see below), whose sum is σ = 94348800. Its totient is φ = 27276480.

The previous prime is 52771811. The next prime is 52771819. The reversal of 52771815 is 51817725.

It is an interprime number because it is at equal distance from previous prime (52771811) and next prime (52771819).

It is not a de Polignac number, because 52771815 - 2² = 52771811 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52771815.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52771811) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 265086 + ... + 265284.

It is an arithmetic number, because the mean of its divisors is an integer number (1965600).

Almost surely, 2^52771815 is an apocalyptic number.

52771815 is a deficient number, since it is larger than the sum of its proper divisors (41576985).

52771815 is a wasteful number, since it uses less digits than its factorization.

52771815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364 (or 361 counting only the distinct ones).

The product of its digits is 19600, while the sum is 36.

The square root of 52771815 is about 7264.4211744639. The cubic root of 52771815 is about 375.0887256724.

The spelling of 52771815 in words is "fifty-two million, seven hundred seventy-one thousand, eight hundred fifteen".