49221481 has 2 divisors, whose sum is σ = 49221482. Its totient is φ = 49221480.

The previous prime is 49221479. The next prime is 49221499. The reversal of 49221481 is 18412294.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31539456 + 17682025 = 5616^2 + 4205^2 .

It is a cyclic number.

It is not a de Polignac number, because 49221481 - 2¹ = 49221479 is a prime.

It is a super-2 number, since 2×49221481² = 4845508383666722, which contains 22 as substring.

Together with 49221479, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (49221421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24610740 + 24610741.

It is an arithmetic number, because the mean of its divisors is an integer number (24610741).

Almost surely, 2^49221481 is an apocalyptic number.

It is an amenable number.

49221481 is a deficient number, since it is larger than the sum of its proper divisors (1).

49221481 is an equidigital number, since it uses as much as digits as its factorization.

49221481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4608, while the sum is 31.

The square root of 49221481 is about 7015.8022349550. The cubic root of 49221481 is about 366.4810802788.

The spelling of 49221481 in words is "forty-nine million, two hundred twenty-one thousand, four hundred eighty-one".