51374191 has 8 divisors (see below), whose sum is σ = 56995200. Its totient is φ = 45911640.

The previous prime is 51374173. The next prime is 51374201. The reversal of 51374191 is 19147315.

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 51374191 - 2¹³ = 51365999 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 (51374291) 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, 38931 + ... + 40228.

It is an arithmetic number, because the mean of its divisors is an integer number (7124400).

Almost surely, 2^51374191 is an apocalyptic number.

51374191 is a deficient number, since it is larger than the sum of its proper divisors (5621009).

51374191 is a wasteful number, since it uses less digits than its factorization.

51374191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79229.

The product of its digits is 3780, while the sum is 31.

The square root of 51374191 is about 7167.5791589629. The cubic root of 51374191 is about 371.7477357616.

The spelling of 51374191 in words is "fifty-one million, three hundred seventy-four thousand, one hundred ninety-one".