53231555 has 8 divisors (see below), whose sum is σ = 68791632. Its totient is φ = 39309408.

The previous prime is 53231551. The next prime is 53231569. The reversal of 53231555 is 55513235.

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 53231555 - 2² = 53231551 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53231551) 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, 409409 + ... + 409538.

It is an arithmetic number, because the mean of its divisors is an integer number (8598954).

Almost surely, 2^53231555 is an apocalyptic number.

53231555 is a deficient number, since it is larger than the sum of its proper divisors (15560077).

53231555 is a wasteful number, since it uses less digits than its factorization.

53231555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818965.

The product of its digits is 11250, while the sum is 29.

The square root of 53231555 is about 7295.9958196260. The cubic root of 53231555 is about 376.1748163812.

The spelling of 53231555 in words is "fifty-three million, two hundred thirty-one thousand, five hundred fifty-five".