51254117 has 4 divisors (see below), whose sum is σ = 51303936. Its totient is φ = 51204300.

The previous prime is 51254113. The next prime is 51254123. The reversal of 51254117 is 71145215.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 51254117 - 2² = 51254113 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51254113) 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, 23333 + ... + 25434.

It is an arithmetic number, because the mean of its divisors is an integer number (12825984).

Almost surely, 2^51254117 is an apocalyptic number.

It is an amenable number.

51254117 is a deficient number, since it is larger than the sum of its proper divisors (49819).

51254117 is a wasteful number, since it uses less digits than its factorization.

51254117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49818.

The product of its digits is 1400, while the sum is 26.

The square root of 51254117 is about 7159.1980696165. The cubic root of 51254117 is about 371.4578881551.

The spelling of 51254117 in words is "fifty-one million, two hundred fifty-four thousand, one hundred seventeen".