49211801 has 2 divisors, whose sum is σ = 49211802. Its totient is φ = 49211800.

The previous prime is 49211797. The next prime is 49211809. The reversal of 49211801 is 10811294.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48720400 + 491401 = 6980^2 + 701^2 .

It is a cyclic number.

It is not a de Polignac number, because 49211801 - 2² = 49211797 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (49211809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24605900 + 24605901.

It is an arithmetic number, because the mean of its divisors is an integer number (24605901).

Almost surely, 2^49211801 is an apocalyptic number.

It is an amenable number.

49211801 is a deficient number, since it is larger than the sum of its proper divisors (1).

49211801 is an equidigital number, since it uses as much as digits as its factorization.

49211801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 26.

The square root of 49211801 is about 7015.1123298205. The cubic root of 49211801 is about 366.4570543903.

The spelling of 49211801 in words is "forty-nine million, two hundred eleven thousand, eight hundred one".