51253023 has 4 divisors (see below), whose sum is σ = 68337368. Its totient is φ = 34168680.

The previous prime is 51253001. The next prime is 51253043. The reversal of 51253023 is 32035215.

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

It is not a de Polignac number, because 51253023 - 2⁵ = 51252991 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51253043) 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, 8542168 + ... + 8542173.

It is an arithmetic number, because the mean of its divisors is an integer number (17084342).

Almost surely, 2^51253023 is an apocalyptic number.

51253023 is a deficient number, since it is larger than the sum of its proper divisors (17084345).

51253023 is a wasteful number, since it uses less digits than its factorization.

51253023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17084344.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 51253023 is about 7159.1216640032. The cubic root of 51253023 is about 371.4552452597.

Adding to 51253023 its reverse (32035215), we get a palindrome (83288238).

It can be divided in two parts, 512 and 53023, that added together give a palindrome (53535).

The spelling of 51253023 in words is "fifty-one million, two hundred fifty-three thousand, twenty-three".