53994667 has 4 divisors (see below), whose sum is σ = 54119800. Its totient is φ = 53869536.

The previous prime is 53994659. The next prime is 53994671. The reversal of 53994667 is 76649935.

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 53994667 - 2³ = 53994659 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 53994667.

It is not an unprimeable number, because it can be changed into a prime (53994167) 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, 61917 + ... + 62782.

It is an arithmetic number, because the mean of its divisors is an integer number (13529950).

Almost surely, 2^53994667 is an apocalyptic number.

53994667 is a deficient number, since it is larger than the sum of its proper divisors (125133).

53994667 is a wasteful number, since it uses less digits than its factorization.

53994667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125132.

The product of its digits is 1224720, while the sum is 49.

The square root of 53994667 is about 7348.1063547012. The cubic root of 53994667 is about 377.9638716719.

The spelling of 53994667 in words is "fifty-three million, nine hundred ninety-four thousand, six hundred sixty-seven".