53503481 has 8 divisors (see below), whose sum is σ = 55016544. Its totient is φ = 52002720.

The previous prime is 53503477. The next prime is 53503511. The reversal of 53503481 is 18430535.

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 53503481 - 2² = 53503477 is a prime.

It is a super-2 number, since 2×53503481² = 5725244958234722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53503421) 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, 6125 + ... + 12021.

It is an arithmetic number, because the mean of its divisors is an integer number (6877068).

Almost surely, 2^53503481 is an apocalyptic number.

It is an amenable number.

53503481 is a deficient number, since it is larger than the sum of its proper divisors (1513063).

53503481 is a wasteful number, since it uses less digits than its factorization.

53503481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6151.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 53503481 is about 7314.6073715545. The cubic root of 53503481 is about 376.8142743415.

The spelling of 53503481 in words is "fifty-three million, five hundred three thousand, four hundred eighty-one".