51949711 has 8 divisors (see below), whose sum is σ = 57878784. Its totient is φ = 46221720.

The previous prime is 51949687. The next prime is 51949763. The reversal of 51949711 is 11794915.

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 51949711 - 2²¹ = 49852559 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 (51949771) 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, 49725 + ... + 50758.

It is an arithmetic number, because the mean of its divisors is an integer number (7234848).

Almost surely, 2^51949711 is an apocalyptic number.

51949711 is a deficient number, since it is larger than the sum of its proper divisors (5929073).

51949711 is a wasteful number, since it uses less digits than its factorization.

51949711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100541.

The product of its digits is 11340, while the sum is 37.

The square root of 51949711 is about 7207.6147927036. The cubic root of 51949711 is about 373.1307536334.

The spelling of 51949711 in words is "fifty-one million, nine hundred forty-nine thousand, seven hundred eleven".