47525647 has 8 divisors (see below), whose sum is σ = 51305744. Its totient is φ = 43763328.

The previous prime is 47525641. The next prime is 47525657. The reversal of 47525647 is 74652574.

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

It is a 7-Lehmer number, since φ(47525647) divides (47525647-1)⁷.

It is a cyclic number.

It is not a de Polignac number, because 47525647 - 2²³ = 39137039 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 (47525641) 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, 1408 + ... + 9850.

It is an arithmetic number, because the mean of its divisors is an integer number (6413218).

Almost surely, 2^47525647 is an apocalyptic number.

47525647 is the 5629-th pentagonal number.

47525647 is a deficient number, since it is larger than the sum of its proper divisors (3780097).

47525647 is a wasteful number, since it uses less digits than its factorization.

47525647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8889.

The product of its digits is 235200, while the sum is 40.

The square root of 47525647 is about 6893.8847538960. The cubic root of 47525647 is about 362.2229912281. Note that the first 3 decimals are identical.

The spelling of 47525647 in words is "forty-seven million, five hundred twenty-five thousand, six hundred forty-seven".