49101994 has 4 divisors (see below), whose sum is σ = 73652994. Its totient is φ = 24550996.

The previous prime is 49101991. The next prime is 49102007. The reversal of 49101994 is 49910194.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49910194 = 2 ⋅24955097.

It can be written as a sum of positive squares in only one way, i.e., 40487769 + 8614225 = 6363^2 + 2935^2 .

It is a super-2 number, since 2×49101994² = 4822011629552072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (49101991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12275497 + ... + 12275500.

Almost surely, 2^49101994 is an apocalyptic number.

49101994 is a deficient number, since it is larger than the sum of its proper divisors (24551000).

49101994 is a wasteful number, since it uses less digits than its factorization.

49101994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24550999.

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 49101994 is about 7007.2814985556. The cubic root of 49101994 is about 366.1842911158.

The spelling of 49101994 in words is "forty-nine million, one hundred one thousand, nine hundred ninety-four".