51579701 has 4 divisors (see below), whose sum is σ = 51770304. Its totient is φ = 51389100.

The previous prime is 51579673. The next prime is 51579707. The reversal of 51579701 is 10797515.

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 51579701 - 2²² = 47385397 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 (51579707) 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, 94895 + ... + 95436.

It is an arithmetic number, because the mean of its divisors is an integer number (12942576).

Almost surely, 2^51579701 is an apocalyptic number.

It is an amenable number.

51579701 is a deficient number, since it is larger than the sum of its proper divisors (190603).

51579701 is a wasteful number, since it uses less digits than its factorization.

51579701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190602.

The product of its (nonzero) digits is 11025, while the sum is 35.

The square root of 51579701 is about 7181.9009322045. The cubic root of 51579701 is about 372.2427718298.

The spelling of 51579701 in words is "fifty-one million, five hundred seventy-nine thousand, seven hundred one".