53144355 has 32 divisors (see below), whose sum is σ = 93477888. Its totient is φ = 25568000.

The previous prime is 53144353. The next prime is 53144381. The reversal of 53144355 is 55344135.

It is not a de Polignac number, because 53144355 - 2¹ = 53144353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53144353) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21430 + ... + 23780.

It is an arithmetic number, because the mean of its divisors is an integer number (2921184).

Almost surely, 2^53144355 is an apocalyptic number.

53144355 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

53144355 is a deficient number, since it is larger than the sum of its proper divisors (40333533).

53144355 is a wasteful number, since it uses less digits than its factorization.

53144355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2507.

The product of its digits is 18000, while the sum is 30.

The square root of 53144355 is about 7290.0174896910. The cubic root of 53144355 is about 375.9692968554.

It can be divided in two parts, 5314 and 4355, that added together give a palindrome (9669).

The spelling of 53144355 in words is "fifty-three million, one hundred forty-four thousand, three hundred fifty-five".