49531619 has 2 divisors, whose sum is σ = 49531620. Its totient is φ = 49531618.

The previous prime is 49531609. The next prime is 49531631. The reversal of 49531619 is 91613594.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49531619 is a prime.

It is a super-2 number, since 2×49531619² = 4906762561522322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (49531609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24765809 + 24765810.

It is an arithmetic number, because the mean of its divisors is an integer number (24765810).

Almost surely, 2^49531619 is an apocalyptic number.

49531619 is a deficient number, since it is larger than the sum of its proper divisors (1).

49531619 is an equidigital number, since it uses as much as digits as its factorization.

49531619 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29160, while the sum is 38.

The square root of 49531619 is about 7037.8703454951. The cubic root of 49531619 is about 367.2491854561.

The spelling of 49531619 in words is "forty-nine million, five hundred thirty-one thousand, six hundred nineteen".