47591251 has 4 divisors (see below), whose sum is σ = 47605104. Its totient is φ = 47577400.

The previous prime is 47591249. The next prime is 47591281. The reversal of 47591251 is 15219574.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 47591251 - 2¹ = 47591249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47591221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2541 + ... + 10081.

It is an arithmetic number, because the mean of its divisors is an integer number (11901276).

Almost surely, 2^47591251 is an apocalyptic number.

47591251 is a deficient number, since it is larger than the sum of its proper divisors (13853).

47591251 is an equidigital number, since it uses as much as digits as its factorization.

47591251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13852.

The product of its digits is 12600, while the sum is 34.

The square root of 47591251 is about 6898.6412430275. The cubic root of 47591251 is about 362.3895844452.

The spelling of 47591251 in words is "forty-seven million, five hundred ninety-one thousand, two hundred fifty-one".