53449999 has 8 divisors (see below), whose sum is σ = 56067552. Its totient is φ = 50856960.

The previous prime is 53449973. The next prime is 53450011. The reversal of 53449999 is 99994435.

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 53449999 - 2¹¹ = 53447951 is a prime.

It is a Duffinian number.

53449999 is a modest number, since divided by 9999 gives 5344 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53449909) 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, 1582 + ... + 10459.

It is an arithmetic number, because the mean of its divisors is an integer number (7008444).

Almost surely, 2^53449999 is an apocalyptic number.

53449999 is a deficient number, since it is larger than the sum of its proper divisors (2617553).

53449999 is a wasteful number, since it uses less digits than its factorization.

53449999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12257.

The product of its digits is 1574640, while the sum is 52.

The square root of 53449999 is about 7310.9506221831. The cubic root of 53449999 is about 376.6886781543.

The spelling of 53449999 in words is "fifty-three million, four hundred forty-nine thousand, nine hundred ninety-nine".