52521871 has 16 divisors (see below), whose sum is σ = 57600000. Its totient is φ = 47700576.

The previous prime is 52521869. The next prime is 52521893. The reversal of 52521871 is 17812525.

It is a cyclic number.

It is not a de Polignac number, because 52521871 - 2¹ = 52521869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52521841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109410 + ... + 109888.

It is an arithmetic number, because the mean of its divisors is an integer number (3600000).

Almost surely, 2^52521871 is an apocalyptic number.

52521871 is a deficient number, since it is larger than the sum of its proper divisors (5078129).

52521871 is a wasteful number, since it uses less digits than its factorization.

52521871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 726.

The product of its digits is 5600, while the sum is 31.

The square root of 52521871 is about 7247.1974583283. The cubic root of 52521871 is about 374.4956086907.

The spelling of 52521871 in words is "fifty-two million, five hundred twenty-one thousand, eight hundred seventy-one".