51253051 has 4 divisors (see below), whose sum is σ = 53950600. Its totient is φ = 48555504.

The previous prime is 51253049. The next prime is 51253073. The reversal of 51253051 is 15035215.

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 51253051 - 2¹ = 51253049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51253001) 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, 1348746 + ... + 1348783.

It is an arithmetic number, because the mean of its divisors is an integer number (13487650).

Almost surely, 2^51253051 is an apocalyptic number.

51253051 is a deficient number, since it is larger than the sum of its proper divisors (2697549).

51253051 is a wasteful number, since it uses less digits than its factorization.

51253051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2697548.

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 51253051 is about 7159.1236195501. The cubic root of 51253051 is about 371.4553129028.

Adding to 51253051 its reverse (15035215), we get a palindrome (66288266).

The spelling of 51253051 in words is "fifty-one million, two hundred fifty-three thousand, fifty-one".