52167521 has 16 divisors (see below), whose sum is σ = 64460160. Its totient is φ = 41212800.

The previous prime is 52167503. The next prime is 52167523. The reversal of 52167521 is 12576125.

It is a cyclic number.

It is not a de Polignac number, because 52167521 - 2¹⁰ = 52166497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52167523) 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, 380 + ... + 10221.

It is an arithmetic number, because the mean of its divisors is an integer number (4028760).

Almost surely, 2^52167521 is an apocalyptic number.

It is an amenable number.

52167521 is a deficient number, since it is larger than the sum of its proper divisors (12292639).

52167521 is a wasteful number, since it uses less digits than its factorization.

52167521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10664.

The product of its digits is 4200, while the sum is 29.

The square root of 52167521 is about 7222.7087024191. The cubic root of 52167521 is about 373.6515027000.

The spelling of 52167521 in words is "fifty-two million, one hundred sixty-seven thousand, five hundred twenty-one".