51544047 has 8 divisors (see below), whose sum is σ = 68759856. Its totient is φ = 34345472.

The previous prime is 51544043. The next prime is 51544061. The reversal of 51544047 is 74044515.

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 51544047 - 2² = 51544043 is a prime.

It is a super-2 number, since 2×51544047² = 5313577562276418, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51544043) 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, 6673 + ... + 12149.

It is an arithmetic number, because the mean of its divisors is an integer number (8594982).

Almost surely, 2^51544047 is an apocalyptic number.

51544047 is a deficient number, since it is larger than the sum of its proper divisors (17215809).

51544047 is a wasteful number, since it uses less digits than its factorization.

51544047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8617.

The product of its (nonzero) digits is 11200, while the sum is 30.

The square root of 51544047 is about 7179.4182911988. The cubic root of 51544047 is about 372.1569822476.

The spelling of 51544047 in words is "fifty-one million, five hundred forty-four thousand, forty-seven".