53255661 has 8 divisors (see below), whose sum is σ = 71098560. Its totient is φ = 35458272.

The previous prime is 53255641. The next prime is 53255677. The reversal of 53255661 is 16655235.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53255661 - 2⁷ = 53255533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53255621) 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, 8545 + ... + 13398.

It is an arithmetic number, because the mean of its divisors is an integer number (8887320).

Almost surely, 2^53255661 is an apocalyptic number.

It is an amenable number.

53255661 is a deficient number, since it is larger than the sum of its proper divisors (17842899).

53255661 is a wasteful number, since it uses less digits than its factorization.

53255661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22755.

The product of its digits is 27000, while the sum is 33.

The square root of 53255661 is about 7297.6476346834. The cubic root of 53255661 is about 376.2315916131.

The spelling of 53255661 in words is "fifty-three million, two hundred fifty-five thousand, six hundred sixty-one".