52123451 has 4 divisors (see below), whose sum is σ = 54389712. Its totient is φ = 49857192.

The previous prime is 52123447. The next prime is 52123457. The reversal of 52123451 is 15432125.

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

It is not a de Polignac number, because 52123451 - 2² = 52123447 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 2266237 = 52123451 / (5 + 2 + 1 + 2 + 3 + 4 + 5 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52123457) 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, 1133096 + ... + 1133141.

It is an arithmetic number, because the mean of its divisors is an integer number (13597428).

Almost surely, 2^52123451 is an apocalyptic number.

52123451 is a deficient number, since it is larger than the sum of its proper divisors (2266261).

52123451 is a wasteful number, since it uses less digits than its factorization.

52123451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2266260.

The product of its digits is 1200, while the sum is 23.

The square root of 52123451 is about 7219.6572633332. The cubic root of 52123451 is about 373.5462554726.

Adding to 52123451 its reverse (15432125), we get a palindrome (67555576).

The spelling of 52123451 in words is "fifty-two million, one hundred twenty-three thousand, four hundred fifty-one".