47204521 has 16 divisors (see below), whose sum is σ = 58643200. Its totient is φ = 36998208.

The previous prime is 47204477. The next prime is 47204561. The reversal of 47204521 is 12540274.

It is not a de Polignac number, because 47204521 - 2¹³ = 47196329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47204561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7540 + ... + 12298.

It is an arithmetic number, because the mean of its divisors is an integer number (3665200).

Almost surely, 2^47204521 is an apocalyptic number.

It is an amenable number.

47204521 is a deficient number, since it is larger than the sum of its proper divisors (11438679).

47204521 is a wasteful number, since it uses less digits than its factorization.

47204521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4888.

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 47204521 is about 6870.5546355444. The cubic root of 47204521 is about 361.4053120640.

Adding to 47204521 its reverse (12540274), we get a palindrome (59744795).

The spelling of 47204521 in words is "forty-seven million, two hundred four thousand, five hundred twenty-one".