47297251 has 8 divisors (see below), whose sum is σ = 49873680. Its totient is φ = 44729568.

The previous prime is 47297249. The next prime is 47297273. The reversal of 47297251 is 15279274.

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 47297251 - 2¹ = 47297249 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 47297251.

It is not an unprimeable number, because it can be changed into a prime (47297051) 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, 11025 + ... + 14701.

It is an arithmetic number, because the mean of its divisors is an integer number (6234210).

Almost surely, 2^47297251 is an apocalyptic number.

47297251 is a deficient number, since it is larger than the sum of its proper divisors (2576429).

47297251 is a wasteful number, since it uses less digits than its factorization.

47297251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4373.

The product of its digits is 35280, while the sum is 37.

The square root of 47297251 is about 6877.2996881043. The cubic root of 47297251 is about 361.6418091415.

The spelling of 47297251 in words is "forty-seven million, two hundred ninety-seven thousand, two hundred fifty-one".