51400671 has 16 divisors (see below), whose sum is σ = 78892800. Its totient is φ = 29158848.

The previous prime is 51400667. The next prime is 51400691. The reversal of 51400671 is 17600415.

It is not a de Polignac number, because 51400671 - 2² = 51400667 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51400621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5886 + ... + 11723.

It is an arithmetic number, because the mean of its divisors is an integer number (4930800).

Almost surely, 2^51400671 is an apocalyptic number.

51400671 is a deficient number, since it is larger than the sum of its proper divisors (27492129).

51400671 is a wasteful number, since it uses less digits than its factorization.

51400671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17758.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 51400671 is about 7169.4261276618. The cubic root of 51400671 is about 371.8115952537.

The spelling of 51400671 in words is "fifty-one million, four hundred thousand, six hundred seventy-one".