53143057 has 16 divisors (see below), whose sum is σ = 61732800. Its totient is φ = 45239040.

The previous prime is 53143039. The next prime is 53143061. The reversal of 53143057 is 75034135.

It is a de Polignac number, because none of the positive numbers 2^k-53143057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53143067) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17173 + ... + 20029.

It is an arithmetic number, because the mean of its divisors is an integer number (3858300).

Almost surely, 2^53143057 is an apocalyptic number.

It is an amenable number.

53143057 is a deficient number, since it is larger than the sum of its proper divisors (8589743).

53143057 is a wasteful number, since it uses less digits than its factorization.

53143057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2976.

The product of its (nonzero) digits is 6300, while the sum is 28.

The square root of 53143057 is about 7289.9284632978. The cubic root of 53143057 is about 375.9662359337.

The spelling of 53143057 in words is "fifty-three million, one hundred forty-three thousand, fifty-seven".