53143501 has 8 divisors (see below), whose sum is σ = 55528704. Its totient is φ = 50764560.

The previous prime is 53143499. The next prime is 53143543. The reversal of 53143501 is 10534135.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53143501 - 2¹ = 53143499 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53143201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27375 + ... + 29251.

It is an arithmetic number, because the mean of its divisors is an integer number (6941088).

Almost surely, 2^53143501 is an apocalyptic number.

It is an amenable number.

53143501 is a deficient number, since it is larger than the sum of its proper divisors (2385203).

53143501 is a wasteful number, since it uses less digits than its factorization.

53143501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3131.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 53143501 is about 7289.9589162080. The cubic root of 53143501 is about 375.9672829726.

Adding to 53143501 its reverse (10534135), we get a palindrome (63677636).

The spelling of 53143501 in words is "fifty-three million, one hundred forty-three thousand, five hundred one".