53718869 has 8 divisors (see below), whose sum is σ = 56306880. Its totient is φ = 51151936.

The previous prime is 53718859. The next prime is 53718883. The reversal of 53718869 is 96881735.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53718869 - 2⁴ = 53718853 is a prime.

It is a super-2 number, since 2×53718869² = 5771433773278322, which contains 22 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 (53718829) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77 + ... + 10365.

It is an arithmetic number, because the mean of its divisors is an integer number (7038360).

Almost surely, 2^53718869 is an apocalyptic number.

It is an amenable number.

53718869 is a deficient number, since it is larger than the sum of its proper divisors (2588011).

53718869 is a wasteful number, since it uses less digits than its factorization.

53718869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10539.

The product of its digits is 362880, while the sum is 47.

The square root of 53718869 is about 7329.3157252229. The cubic root of 53718869 is about 377.3192421462.

The spelling of 53718869 in words is "fifty-three million, seven hundred eighteen thousand, eight hundred sixty-nine".