52142723 has 4 divisors (see below), whose sum is σ = 55209960. Its totient is φ = 49075488.

The previous prime is 52142711. The next prime is 52142729. The reversal of 52142723 is 32724125.

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

It is a cyclic number.

It is not a de Polignac number, because 52142723 - 2¹⁰ = 52141699 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52142692 and 52142701.

It is not an unprimeable number, because it can be changed into a prime (52142729) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1533593 + ... + 1533626.

It is an arithmetic number, because the mean of its divisors is an integer number (13802490).

Almost surely, 2^52142723 is an apocalyptic number.

52142723 is a deficient number, since it is larger than the sum of its proper divisors (3067237).

52142723 is a wasteful number, since it uses less digits than its factorization.

52142723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3067236.

The product of its digits is 3360, while the sum is 26.

The square root of 52142723 is about 7220.9918293819. The cubic root of 52142723 is about 373.5922878326.

Adding to 52142723 its reverse (32724125), we get a palindrome (84866848).

The spelling of 52142723 in words is "fifty-two million, one hundred forty-two thousand, seven hundred twenty-three".