51379111 has 8 divisors (see below), whose sum is σ = 58773024. Its totient is φ = 43998720.

The previous prime is 51379099. The next prime is 51379123. The reversal of 51379111 is 11197315.

It is an interprime number because it is at equal distance from previous prime (51379099) and next prime (51379123).

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 51379111 - 2¹⁷ = 51248039 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51379111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51379511) 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, 6831 + ... + 12223.

It is an arithmetic number, because the mean of its divisors is an integer number (7346628).

Almost surely, 2^51379111 is an apocalyptic number.

51379111 is a deficient number, since it is larger than the sum of its proper divisors (7393913).

51379111 is a wasteful number, since it uses less digits than its factorization.

51379111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6761.

The product of its digits is 945, while the sum is 28.

The square root of 51379111 is about 7167.9223628608. The cubic root of 51379111 is about 371.7596025533.

The spelling of 51379111 in words is "fifty-one million, three hundred seventy-nine thousand, one hundred eleven".