49591845 has 20 divisors (see below), whose sum is σ = 88898700. Its totient is φ = 26448768.

The previous prime is 49591811. The next prime is 49591879. The reversal of 49591845 is 54819594.

It is an interprime number because it is at equal distance from previous prime (49591811) and next prime (49591879).

It can be written as a sum of positive squares in 2 ways, for example, as 7834401 + 41757444 = 2799^2 + 6462^2 .

It is not a de Polignac number, because 49591845 - 2¹⁵ = 49559077 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 49591845.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 60820 + ... + 61629.

It is an arithmetic number, because the mean of its divisors is an integer number (4444935).

Almost surely, 2^49591845 is an apocalyptic number.

49591845 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

49591845 is a deficient number, since it is larger than the sum of its proper divisors (39306855).

49591845 is a wasteful number, since it uses less digits than its factorization.

49591845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122466 (or 122457 counting only the distinct ones).

The product of its digits is 259200, while the sum is 45.

The square root of 49591845 is about 7042.1477547691. The cubic root of 49591845 is about 367.3979725101.

The spelling of 49591845 in words is "forty-nine million, five hundred ninety-one thousand, eight hundred forty-five".