52381667 has 4 divisors (see below), whose sum is σ = 56411040. Its totient is φ = 48352296.

The previous prime is 52381657. The next prime is 52381673. The reversal of 52381667 is 76618325.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 52381667 - 2¹⁸ = 52119523 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52381667.

It is not an unprimeable number, because it can be changed into a prime (52381657) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2014667 + ... + 2014692.

It is an arithmetic number, because the mean of its divisors is an integer number (14102760).

Almost surely, 2^52381667 is an apocalyptic number.

52381667 is a deficient number, since it is larger than the sum of its proper divisors (4029373).

52381667 is a wasteful number, since it uses less digits than its factorization.

52381667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4029372.

The product of its digits is 60480, while the sum is 38.

The square root of 52381667 is about 7237.5180137945. The cubic root of 52381667 is about 374.1620805111.

The spelling of 52381667 in words is "fifty-two million, three hundred eighty-one thousand, six hundred sixty-seven".