53181167 has 4 divisors (see below), whose sum is σ = 57272040. Its totient is φ = 49090296.

The previous prime is 53181137. The next prime is 53181169. The reversal of 53181167 is 76118135.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76118135 = 5 ⋅15223627.

It is a cyclic number.

It is not a de Polignac number, because 53181167 - 2¹⁶ = 53115631 is a prime.

It is a super-4 number, since 4×53181167⁴ (a number of 32 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53181169) 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, 2045417 + ... + 2045442.

It is an arithmetic number, because the mean of its divisors is an integer number (14318010).

Almost surely, 2^53181167 is an apocalyptic number.

53181167 is a deficient number, since it is larger than the sum of its proper divisors (4090873).

53181167 is a wasteful number, since it uses less digits than its factorization.

53181167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4090872.

The product of its digits is 5040, while the sum is 32.

The square root of 53181167 is about 7292.5418750940. The cubic root of 53181167 is about 376.0560855487.

The spelling of 53181167 in words is "fifty-three million, one hundred eighty-one thousand, one hundred sixty-seven".