52116542 has 4 divisors (see below), whose sum is σ = 78174816. Its totient is φ = 26058270.

The previous prime is 52116541. The next prime is 52116587. The reversal of 52116542 is 24561125.

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

It is a super-2 number, since 2×52116542² = 5432267900075528, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52116541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13029134 + ... + 13029137.

It is an arithmetic number, because the mean of its divisors is an integer number (19543704).

Almost surely, 2^52116542 is an apocalyptic number.

52116542 is a deficient number, since it is larger than the sum of its proper divisors (26058274).

52116542 is a wasteful number, since it uses less digits than its factorization.

52116542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26058273.

The product of its digits is 2400, while the sum is 26.

The square root of 52116542 is about 7219.1787621585. The cubic root of 52116542 is about 373.5297501372.

Adding to 52116542 its reverse (24561125), we get a palindrome (76677667).

The spelling of 52116542 in words is "fifty-two million, one hundred sixteen thousand, five hundred forty-two".