51423701 has 8 divisors (see below), whose sum is σ = 59290944. Its totient is φ = 43686720.

The previous prime is 51423661. The next prime is 51423703. The reversal of 51423701 is 10732415.

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

It is not a de Polignac number, because 51423701 - 2¹⁰ = 51422677 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 (51423703) 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, 31715 + ... + 33296.

It is an arithmetic number, because the mean of its divisors is an integer number (7411368).

Almost surely, 2^51423701 is an apocalyptic number.

It is an amenable number.

51423701 is a deficient number, since it is larger than the sum of its proper divisors (7867243).

51423701 is a wasteful number, since it uses less digits than its factorization.

51423701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65131.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 51423701 is about 7171.0320735582. The cubic root of 51423701 is about 371.8671168538.

The spelling of 51423701 in words is "fifty-one million, four hundred twenty-three thousand, seven hundred one".