53043501 has 16 divisors (see below), whose sum is σ = 81218048. Its totient is φ = 30164400.

The previous prime is 53043493. The next prime is 53043509. The reversal of 53043501 is 10534035.

It is an interprime number because it is at equal distance from previous prime (53043493) and next prime (53043509).

It is not a de Polignac number, because 53043501 - 2³ = 53043493 is a prime.

It is a super-2 number, since 2×53043501² = 5627225996674002, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53043509) 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, 1555 + ... + 10416.

It is an arithmetic number, because the mean of its divisors is an integer number (5076128).

Almost surely, 2^53043501 is an apocalyptic number.

It is an amenable number.

53043501 is a deficient number, since it is larger than the sum of its proper divisors (28174547).

53043501 is a wasteful number, since it uses less digits than its factorization.

53043501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12192.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 53043501 is about 7283.0969374298. The cubic root of 53043501 is about 375.7313159891.

Adding to 53043501 its reverse (10534035), we get a palindrome (63577536).

The spelling of 53043501 in words is "fifty-three million, forty-three thousand, five hundred one".