53144919 has 12 divisors (see below), whose sum is σ = 80805400. Its totient is φ = 33565104.

The previous prime is 53144893. The next prime is 53144929. The reversal of 53144919 is 91944135.

It is a happy number.

It is not a de Polignac number, because 53144919 - 2⁹ = 53144407 is a prime.

It is a super-2 number, since 2×53144919² = 5648764831033122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53144929) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 155224 + ... + 155565.

Almost surely, 2^53144919 is an apocalyptic number.

53144919 is a deficient number, since it is larger than the sum of its proper divisors (27660481).

53144919 is a wasteful number, since it uses less digits than its factorization.

53144919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310814 (or 310811 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 53144919 is about 7290.0561726231. The cubic root of 53144919 is about 375.9706268551.

The spelling of 53144919 in words is "fifty-three million, one hundred forty-four thousand, nine hundred nineteen".