49015559 has 2 divisors, whose sum is σ = 49015560. Its totient is φ = 49015558.

The previous prime is 49015469. The next prime is 49015609. The reversal of 49015559 is 95551094.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 49015559 - 2¹² = 49011463 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49015859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24507779 + 24507780.

It is an arithmetic number, because the mean of its divisors is an integer number (24507780).

Almost surely, 2^49015559 is an apocalyptic number.

49015559 is a deficient number, since it is larger than the sum of its proper divisors (1).

49015559 is an equidigital number, since it uses as much as digits as its factorization.

49015559 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40500, while the sum is 38.

The square root of 49015559 is about 7001.1112689344. Note that the first 3 decimals coincide. The cubic root of 49015559 is about 365.9692982896.

The spelling of 49015559 in words is "forty-nine million, fifteen thousand, five hundred fifty-nine".