53123013542 has 4 divisors (see below), whose sum is σ = 79684520316. Its totient is φ = 26561506770.

The previous prime is 53123013529. The next prime is 53123013563. The reversal of 53123013542 is 24531032135.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24531032135 = 5 ⋅4906206427.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13280753384 + ... + 13280753387.

It is an arithmetic number, because the mean of its divisors is an integer number (19921130079).

Almost surely, 2^53123013542 is an apocalyptic number.

53123013542 is a deficient number, since it is larger than the sum of its proper divisors (26561506774).

53123013542 is a wasteful number, since it uses less digits than its factorization.

53123013542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26561506773.

The product of its (nonzero) digits is 10800, while the sum is 29.

Adding to 53123013542 its reverse (24531032135), we get a palindrome (77654045677).

The spelling of 53123013542 in words is "fifty-three billion, one hundred twenty-three million, thirteen thousand, five hundred forty-two".