53481599 has 4 divisors (see below), whose sum is σ = 56296440. Its totient is φ = 50666760.

The previous prime is 53481587. The next prime is 53481607. The reversal of 53481599 is 99518435.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99518435 = 5 ⋅19903687.

It is a cyclic number.

It is not a de Polignac number, because 53481599 - 2²⁴ = 36704383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53481529) 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, 1407392 + ... + 1407429.

It is an arithmetic number, because the mean of its divisors is an integer number (14074110).

Almost surely, 2^53481599 is an apocalyptic number.

53481599 is a deficient number, since it is larger than the sum of its proper divisors (2814841).

53481599 is a wasteful number, since it uses less digits than its factorization.

53481599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2814840.

The product of its digits is 194400, while the sum is 44.

The square root of 53481599 is about 7313.1114445221. Note that the first 3 decimals coincide. The cubic root of 53481599 is about 376.7628971593.

The spelling of 53481599 in words is "fifty-three million, four hundred eighty-one thousand, five hundred ninety-nine".