53072542 has 4 divisors (see below), whose sum is σ = 79608816. Its totient is φ = 26536270.

The previous prime is 53072519. The next prime is 53072549. The reversal of 53072542 is 24527035.

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 53072542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53072549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13268134 + ... + 13268137.

It is an arithmetic number, because the mean of its divisors is an integer number (19902204).

Almost surely, 2^53072542 is an apocalyptic number.

53072542 is a deficient number, since it is larger than the sum of its proper divisors (26536274).

53072542 is a wasteful number, since it uses less digits than its factorization.

53072542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26536273.

The product of its (nonzero) digits is 8400, while the sum is 28.

The square root of 53072542 is about 7285.0903906541. The cubic root of 53072542 is about 375.7998736962.

Adding to 53072542 its reverse (24527035), we get a palindrome (77599577).

The spelling of 53072542 in words is "fifty-three million, seventy-two thousand, five hundred forty-two".