47545501 has 2 divisors, whose sum is σ = 47545502. Its totient is φ = 47545500.

The previous prime is 47545499. The next prime is 47545513. The reversal of 47545501 is 10554574.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34047225 + 13498276 = 5835^2 + 3674^2 .

It is a cyclic number.

It is not a de Polignac number, because 47545501 - 2¹ = 47545499 is a prime.

Together with 47545499, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47545571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23772750 + 23772751.

It is an arithmetic number, because the mean of its divisors is an integer number (23772751).

Almost surely, 2^47545501 is an apocalyptic number.

It is an amenable number.

47545501 is a deficient number, since it is larger than the sum of its proper divisors (1).

47545501 is an equidigital number, since it uses as much as digits as its factorization.

47545501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14000, while the sum is 31.

The square root of 47545501 is about 6895.3245753916. The cubic root of 47545501 is about 362.2734241663.

The spelling of 47545501 in words is "forty-seven million, five hundred forty-five thousand, five hundred one".