53425143 has 8 divisors (see below), whose sum is σ = 79148400. Its totient is φ = 35616744.

The previous prime is 53425133. The next prime is 53425147. The reversal of 53425143 is 34152435.

It is not a de Polignac number, because 53425143 - 2⁵ = 53425111 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1978709 = 53425143 / (5 + 3 + 4 + 2 + 5 + 1 + 4 + 3).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53425147) 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, 989328 + ... + 989381.

It is an arithmetic number, because the mean of its divisors is an integer number (9893550).

Almost surely, 2^53425143 is an apocalyptic number.

53425143 is a deficient number, since it is larger than the sum of its proper divisors (25723257).

53425143 is a wasteful number, since it uses less digits than its factorization.

53425143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1978718 (or 1978712 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 53425143 is about 7309.2505087731. The cubic root of 53425143 is about 376.6302782435.

Adding to 53425143 its reverse (34152435), we get a palindrome (87577578).

The spelling of 53425143 in words is "fifty-three million, four hundred twenty-five thousand, one hundred forty-three".