49931619 has 8 divisors (see below), whose sum is σ = 67222272. Its totient is φ = 32964360.

The previous prime is 49931617. The next prime is 49931633. The reversal of 49931619 is 91613994.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 49931619 - 2¹ = 49931617 is a prime.

It is a super-2 number, since 2×49931619² = 4986333151922322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (49931617) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80487 + ... + 81104.

It is an arithmetic number, because the mean of its divisors is an integer number (8402784).

Almost surely, 2^49931619 is an apocalyptic number.

49931619 is a deficient number, since it is larger than the sum of its proper divisors (17290653).

49931619 is a wasteful number, since it uses less digits than its factorization.

49931619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161697.

The product of its digits is 52488, while the sum is 42.

The square root of 49931619 is about 7066.2308906517. The cubic root of 49931619 is about 368.2351280722.

The spelling of 49931619 in words is "forty-nine million, nine hundred thirty-one thousand, six hundred nineteen".