47521499 has 2 divisors, whose sum is σ = 47521500. Its totient is φ = 47521498.

The previous prime is 47521471. The next prime is 47521541. The reversal of 47521499 is 99412574.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47521499 - 2¹² = 47517403 is a prime.

It is not a weakly prime, because it can be changed into another prime (47521699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23760749 + 23760750.

It is an arithmetic number, because the mean of its divisors is an integer number (23760750).

Almost surely, 2^47521499 is an apocalyptic number.

47521499 is a deficient number, since it is larger than the sum of its proper divisors (1).

47521499 is an equidigital number, since it uses as much as digits as its factorization.

47521499 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 41.

The square root of 47521499 is about 6893.5839009908. The cubic root of 47521499 is about 362.2124527450.

The spelling of 47521499 in words is "forty-seven million, five hundred twenty-one thousand, four hundred ninety-nine".