53999469 has 24 divisors (see below), whose sum is σ = 81731520. Its totient is φ = 34290432.

The previous prime is 53999459. The next prime is 53999471. The reversal of 53999469 is 96499935.

It is not a de Polignac number, because 53999469 - 2⁴ = 53999453 is a prime.

It is a super-2 number, since 2×53999469² = 5831885304563922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53999459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 72702 + ... + 73440.

It is an arithmetic number, because the mean of its divisors is an integer number (3405480).

Almost surely, 2^53999469 is an apocalyptic number.

It is an amenable number.

53999469 is a deficient number, since it is larger than the sum of its proper divisors (27732051).

53999469 is a wasteful number, since it uses less digits than its factorization.

53999469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1121 (or 1118 counting only the distinct ones).

The product of its digits is 2361960, while the sum is 54.

The square root of 53999469 is about 7348.4330982870. The cubic root of 53999469 is about 377.9750760420.

The spelling of 53999469 in words is "fifty-three million, nine hundred ninety-nine thousand, four hundred sixty-nine".