47891025 has 72 divisors (see below), whose sum is σ = 105618240. Its totient is φ = 20200320.

The previous prime is 47891021. The next prime is 47891027. The reversal of 47891025 is 52019874.

It is not a de Polignac number, because 47891025 - 2² = 47891021 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (47891021) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 19306 + ... + 21644.

It is an arithmetic number, because the mean of its divisors is an integer number (1466920).

Almost surely, 2^47891025 is an apocalyptic number.

47891025 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

47891025 is an abundant number, since it is smaller than the sum of its proper divisors (57727215).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47891025 is a wasteful number, since it uses less digits than its factorization.

47891025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2375 (or 2367 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 47891025 is about 6920.3341682321. The cubic root of 47891025 is about 363.1488813967.

The spelling of 47891025 in words is "forty-seven million, eight hundred ninety-one thousand, twenty-five".