49247551 has 2 divisors, whose sum is σ = 49247552. Its totient is φ = 49247550.

The previous prime is 49247533. The next prime is 49247567. The reversal of 49247551 is 15574294.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 49247551 - 2⁹ = 49247039 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 49247551.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49247581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24623775 + 24623776.

It is an arithmetic number, because the mean of its divisors is an integer number (24623776).

Almost surely, 2^49247551 is an apocalyptic number.

49247551 is a deficient number, since it is larger than the sum of its proper divisors (1).

49247551 is an equidigital number, since it uses as much as digits as its factorization.

49247551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 50400, while the sum is 37.

The square root of 49247551 is about 7017.6599376145. The cubic root of 49247551 is about 366.5457707032.

The spelling of 49247551 in words is "forty-nine million, two hundred forty-seven thousand, five hundred fifty-one".