49221619 has 2 divisors, whose sum is σ = 49221620. Its totient is φ = 49221618.

The previous prime is 49221611. The next prime is 49221677. The reversal of 49221619 is 91612294.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 49221619 - 2³ = 49221611 is a prime.

It is a super-2 number, since 2×49221619² = 4845535553962322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (49221611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24610809 + 24610810.

It is an arithmetic number, because the mean of its divisors is an integer number (24610810).

Almost surely, 2^49221619 is an apocalyptic number.

49221619 is a deficient number, since it is larger than the sum of its proper divisors (1).

49221619 is an equidigital number, since it uses as much as digits as its factorization.

49221619 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 34.

The square root of 49221619 is about 7015.8120698890. The cubic root of 49221619 is about 366.4814227738.

The spelling of 49221619 in words is "forty-nine million, two hundred twenty-one thousand, six hundred nineteen".