47456521 has 8 divisors (see below), whose sum is σ = 56594304. Its totient is φ = 38908320.

The previous prime is 47456501. The next prime is 47456527. The reversal of 47456521 is 12565474.

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 47456521 - 2⁵ = 47456489 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47456527) 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, 147220 + ... + 147541.

It is an arithmetic number, because the mean of its divisors is an integer number (7074288).

Almost surely, 2^47456521 is an apocalyptic number.

It is an amenable number.

47456521 is a deficient number, since it is larger than the sum of its proper divisors (9137783).

47456521 is a wasteful number, since it uses less digits than its factorization.

47456521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294791.

The product of its digits is 33600, while the sum is 34.

The square root of 47456521 is about 6888.8693557071. The cubic root of 47456521 is about 362.0472883698.

The spelling of 47456521 in words is "forty-seven million, four hundred fifty-six thousand, five hundred twenty-one".