53143532 has 48 divisors (see below), whose sum is σ = 106428000. Its totient is φ = 23080896.

The previous prime is 53143499. The next prime is 53143543. The reversal of 53143532 is 23534135.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 356594 + ... + 356742.

It is an arithmetic number, because the mean of its divisors is an integer number (2217250).

Almost surely, 2^53143532 is an apocalyptic number.

53143532 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

53143532 is an abundant number, since it is smaller than the sum of its proper divisors (53284468).

53143532 is a wasteful number, since it uses less digits than its factorization.

53143532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223 (or 183 counting only the distinct ones).

The product of its digits is 5400, while the sum is 26.

The square root of 53143532 is about 7289.9610424199. The cubic root of 53143532 is about 375.9673560765.

Adding to 53143532 its reverse (23534135), we get a palindrome (76677667).

The spelling of 53143532 in words is "fifty-three million, one hundred forty-three thousand, five hundred thirty-two".