51404771 has 8 divisors (see below), whose sum is σ = 56415744. Its totient is φ = 46450120.

The previous prime is 51404767. The next prime is 51404807. The reversal of 51404771 is 17740415.

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 51404771 - 2² = 51404767 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51404741) 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, 12155 + ... + 15828.

It is an arithmetic number, because the mean of its divisors is an integer number (7051968).

Almost surely, 2^51404771 is an apocalyptic number.

51404771 is a deficient number, since it is larger than the sum of its proper divisors (5010973).

51404771 is a wasteful number, since it uses less digits than its factorization.

51404771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28161.

The product of its (nonzero) digits is 3920, while the sum is 29.

The square root of 51404771 is about 7169.7120583745. The cubic root of 51404771 is about 371.8214809029.

The spelling of 51404771 in words is "fifty-one million, four hundred four thousand, seven hundred seventy-one".