47545499 has 2 divisors, whose sum is σ = 47545500. Its totient is φ = 47545498.

The previous prime is 47545493. The next prime is 47545501. The reversal of 47545499 is 99454574.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47545499 - 2⁴ = 47545483 is a prime.

Together with 47545501, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (47545493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23772749 + 23772750.

It is an arithmetic number, because the mean of its divisors is an integer number (23772750).

Almost surely, 2^47545499 is an apocalyptic number.

47545499 is a deficient number, since it is larger than the sum of its proper divisors (1).

47545499 is an equidigital number, since it uses as much as digits as its factorization.

47545499 is an evil number, because the sum of its binary digits is even.

The product of its digits is 907200, while the sum is 47.

The square root of 47545499 is about 6895.3244303658. The cubic root of 47545499 is about 362.2734190867.

It can be divided in two parts, 475 and 45499, that multiplied together give a triangular number (21612025 = T₆₅₇₄).

The spelling of 47545499 in words is "forty-seven million, five hundred forty-five thousand, four hundred ninety-nine".