53431867 has 4 divisors (see below), whose sum is σ = 56574936. Its totient is φ = 50288800.

The previous prime is 53431853. The next prime is 53431871. The reversal of 53431867 is 76813435.

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 53431867 - 2¹¹ = 53429819 is a prime.

It is a super-2 number, since 2×53431867² = 5709928822211378, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53434867) 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, 1571509 + ... + 1571542.

It is an arithmetic number, because the mean of its divisors is an integer number (14143734).

Almost surely, 2^53431867 is an apocalyptic number.

53431867 is a deficient number, since it is larger than the sum of its proper divisors (3143069).

53431867 is a wasteful number, since it uses less digits than its factorization.

53431867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3143068.

The product of its digits is 60480, while the sum is 37.

The square root of 53431867 is about 7309.7104593821. The cubic root of 53431867 is about 376.6460782683.

The spelling of 53431867 in words is "fifty-three million, four hundred thirty-one thousand, eight hundred sixty-seven".