53144019 has 20 divisors (see below), whose sum is σ = 79584120. Its totient is φ = 35341920.

The previous prime is 53144017. The next prime is 53144033. The reversal of 53144019 is 91044135.

It is not a de Polignac number, because 53144019 - 2¹ = 53144017 is a prime.

It is a super-2 number, since 2×53144019² = 5648573510944722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 53143983 and 53144001.

It is not an unprimeable number, because it can be changed into a prime (53144017) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 65124 + ... + 65934.

It is an arithmetic number, because the mean of its divisors is an integer number (3979206).

Almost surely, 2^53144019 is an apocalyptic number.

53144019 is a deficient number, since it is larger than the sum of its proper divisors (26440101).

53144019 is an equidigital number, since it uses as much as digits as its factorization.

53144019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1632 (or 1623 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 53144019 is about 7289.9944444423. The cubic root of 53144019 is about 375.9685045107.

The spelling of 53144019 in words is "fifty-three million, one hundred forty-four thousand, nineteen".