51614247 has 8 divisors (see below), whose sum is σ = 69105520. Its totient is φ = 34266240.

The previous prime is 51614243. The next prime is 51614263. The reversal of 51614247 is 74241615.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51614247 - 2² = 51614243 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 (51614243) 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, 34972 + ... + 36417.

It is an arithmetic number, because the mean of its divisors is an integer number (8638190).

Almost surely, 2^51614247 is an apocalyptic number.

51614247 is a deficient number, since it is larger than the sum of its proper divisors (17491273).

51614247 is a wasteful number, since it uses less digits than its factorization.

51614247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71633.

The product of its digits is 6720, while the sum is 30.

The square root of 51614247 is about 7184.3056031881. The cubic root of 51614247 is about 372.3258576736.

The spelling of 51614247 in words is "fifty-one million, six hundred fourteen thousand, two hundred forty-seven".