49845081 has 16 divisors (see below), whose sum is σ = 78079680. Its totient is φ = 27885120.

The previous prime is 49845077. The next prime is 49845083. The reversal of 49845081 is 18054894.

It is not a de Polignac number, because 49845081 - 2² = 49845077 is a prime.

It is a super-2 number, since 2×49845081² = 4969064199793122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (49845083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57666 + ... + 58523.

It is an arithmetic number, because the mean of its divisors is an integer number (4879980).

Almost surely, 2^49845081 is an apocalyptic number.

It is an amenable number.

49845081 is a deficient number, since it is larger than the sum of its proper divisors (28234599).

49845081 is a wasteful number, since it uses less digits than its factorization.

49845081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116216.

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 49845081 is about 7060.1048859064. The cubic root of 49845081 is about 368.0222719074.

Adding to 49845081 its sum of digits (39), we get a triangular number (49845120 = T₉₉₈₄).

The spelling of 49845081 in words is "forty-nine million, eight hundred forty-five thousand, eighty-one".