53448691 has 8 divisors (see below), whose sum is σ = 56331200. Its totient is φ = 50573160.

The previous prime is 53448679. The next prime is 53448713. The reversal of 53448691 is 19684435.

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 53448691 - 2¹¹ = 53446643 is a prime.

It is a super-2 number, since 2×53448691² = 5713525139226962, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53448601) 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, 23440 + ... + 25618.

It is an arithmetic number, because the mean of its divisors is an integer number (7041400).

Almost surely, 2^53448691 is an apocalyptic number.

53448691 is a deficient number, since it is larger than the sum of its proper divisors (2882509).

53448691 is a wasteful number, since it uses less digits than its factorization.

53448691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3489.

The product of its digits is 103680, while the sum is 40.

The square root of 53448691 is about 7310.8611667847. The cubic root of 53448691 is about 376.6856054208.

The spelling of 53448691 in words is "fifty-three million, four hundred forty-eight thousand, six hundred ninety-one".