49216545 has 32 divisors (see below), whose sum is σ = 99997440. Its totient is φ = 22498560.

The previous prime is 49216543. The next prime is 49216571. The reversal of 49216545 is 54561294.

49216545 is a `hidden beast` number, since 492 + 165 + 4 + 5 = 666.

It is not a de Polignac number, because 49216545 - 2¹ = 49216543 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (49216543) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25096 + ... + 26985.

It is an arithmetic number, because the mean of its divisors is an integer number (3124920).

Almost surely, 2^49216545 is an apocalyptic number.

49216545 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

49216545 is an abundant number, since it is smaller than the sum of its proper divisors (50780895).

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

49216545 is a wasteful number, since it uses less digits than its factorization.

49216545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52102 (or 52096 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 49216545 is about 7015.4504488308. The cubic root of 49216545 is about 366.4688294549.

The spelling of 49216545 in words is "forty-nine million, two hundred sixteen thousand, five hundred forty-five".