52401023 has 4 divisors (see below), whose sum is σ = 52536120. Its totient is φ = 52265928.

The previous prime is 52401017. The next prime is 52401043. The reversal of 52401023 is 32010425.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52401023 is a prime.

It is a super-2 number, since 2×52401023² = 5491734422893058, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52400992 and 52401010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52401043) 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, 66965 + ... + 67742.

It is an arithmetic number, because the mean of its divisors is an integer number (13134030).

Almost surely, 2^52401023 is an apocalyptic number.

52401023 is a deficient number, since it is larger than the sum of its proper divisors (135097).

52401023 is a wasteful number, since it uses less digits than its factorization.

52401023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135096.

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

The square root of 52401023 is about 7238.8550890317. The cubic root of 52401023 is about 374.2081614511.

Adding to 52401023 its reverse (32010425), we get a palindrome (84411448).

The spelling of 52401023 in words is "fifty-two million, four hundred one thousand, twenty-three".