51230051 has 4 divisors (see below), whose sum is σ = 51270672. Its totient is φ = 51189432.

The previous prime is 51230029. The next prime is 51230063. The reversal of 51230051 is 15003215.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15003215 = 5 ⋅3000643.

It is a cyclic number.

It is not a de Polignac number, because 51230051 - 2⁶ = 51229987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51230021) 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, 18356 + ... + 20961.

It is an arithmetic number, because the mean of its divisors is an integer number (12817668).

Almost surely, 2^51230051 is an apocalyptic number.

51230051 is a deficient number, since it is larger than the sum of its proper divisors (40621).

51230051 is a wasteful number, since it uses less digits than its factorization.

51230051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40620.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 51230051 is about 7157.5170974298. The cubic root of 51230051 is about 371.3997405982.

Adding to 51230051 its reverse (15003215), we get a palindrome (66233266).

The spelling of 51230051 in words is "fifty-one million, two hundred thirty thousand, fifty-one".