49915845 has 48 divisors (see below), whose sum is σ = 102560640. Its totient is φ = 22814784.

The previous prime is 49915843. The next prime is 49915861. The reversal of 49915845 is 54851994.

49915845 is a `hidden beast` number, since 499 + 158 + 4 + 5 = 666.

It is not a de Polignac number, because 49915845 - 2¹ = 49915843 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 49915845.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49915841) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5571 + ... + 11439.

It is an arithmetic number, because the mean of its divisors is an integer number (2136680).

Almost surely, 2^49915845 is an apocalyptic number.

49915845 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

49915845 is an abundant number, since it is smaller than the sum of its proper divisors (52644795).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49915845 is an equidigital number, since it uses as much as digits as its factorization.

49915845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5896 (or 5884 counting only the distinct ones).

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

The square root of 49915845 is about 7065.1146487513. The cubic root of 49915845 is about 368.1963473503.

The spelling of 49915845 in words is "forty-nine million, nine hundred fifteen thousand, eight hundred forty-five".