49533521 has 2 divisors, whose sum is σ = 49533522. Its totient is φ = 49533520.

The previous prime is 49533511. The next prime is 49533557. The reversal of 49533521 is 12533594.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41473600 + 8059921 = 6440^2 + 2839^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49533521 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (49533511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24766760 + 24766761.

It is an arithmetic number, because the mean of its divisors is an integer number (24766761).

Almost surely, 2^49533521 is an apocalyptic number.

It is an amenable number.

49533521 is a deficient number, since it is larger than the sum of its proper divisors (1).

49533521 is an equidigital number, since it uses as much as digits as its factorization.

49533521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16200, while the sum is 32.

The square root of 49533521 is about 7038.0054703019. The cubic root of 49533521 is about 367.2538861505.

The spelling of 49533521 in words is "forty-nine million, five hundred thirty-three thousand, five hundred twenty-one".