53231455 has 4 divisors (see below), whose sum is σ = 63877752. Its totient is φ = 42585160.

The previous prime is 53231449. The next prime is 53231473. The reversal of 53231455 is 55413235.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-53231455 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5323141 + ... + 5323150.

It is an arithmetic number, because the mean of its divisors is an integer number (15969438).

Almost surely, 2^53231455 is an apocalyptic number.

53231455 is a deficient number, since it is larger than the sum of its proper divisors (10646297).

53231455 is a wasteful number, since it uses less digits than its factorization.

53231455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10646296.

The product of its digits is 9000, while the sum is 28.

The square root of 53231455 is about 7295.9889665487. The cubic root of 53231455 is about 376.1745808222.

The spelling of 53231455 in words is "fifty-three million, two hundred thirty-one thousand, four hundred fifty-five".