51275477 has 8 divisors (see below), whose sum is σ = 55998432. Its totient is φ = 46562800.

The previous prime is 51275473. The next prime is 51275501. The reversal of 51275477 is 77457215.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51275477 - 2² = 51275473 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51275477.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51275473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11018 + ... + 14964.

It is an arithmetic number, because the mean of its divisors is an integer number (6999804).

Almost surely, 2^51275477 is an apocalyptic number.

It is an amenable number.

51275477 is a deficient number, since it is larger than the sum of its proper divisors (4722955).

51275477 is a wasteful number, since it uses less digits than its factorization.

51275477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5139.

The product of its digits is 68600, while the sum is 38.

The square root of 51275477 is about 7160.6897014184. The cubic root of 51275477 is about 371.5094823099.

The spelling of 51275477 in words is "fifty-one million, two hundred seventy-five thousand, four hundred seventy-seven".