53002142 has 4 divisors (see below), whose sum is σ = 79503216. Its totient is φ = 26501070.

The previous prime is 53002123. The next prime is 53002171. The reversal of 53002142 is 24120035.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 53002142.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13250534 + ... + 13250537.

It is an arithmetic number, because the mean of its divisors is an integer number (19875804).

Almost surely, 2^53002142 is an apocalyptic number.

53002142 is a deficient number, since it is larger than the sum of its proper divisors (26501074).

53002142 is a wasteful number, since it uses less digits than its factorization.

53002142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26501073.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 53002142 is about 7280.2570009581. The cubic root of 53002142 is about 375.6336357087.

Adding to 53002142 its reverse (24120035), we get a palindrome (77122177).

The spelling of 53002142 in words is "fifty-three million, two thousand, one hundred forty-two".