49405545 has 96 divisors (see below), whose sum is σ = 104901888. Its totient is φ = 21835008.

The previous prime is 49405511. The next prime is 49405549. The reversal of 49405545 is 54550494.

It is not a de Polignac number, because 49405545 - 2¹² = 49401449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (49405549) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 314607 + ... + 314763.

It is an arithmetic number, because the mean of its divisors is an integer number (1092728).

Almost surely, 2^49405545 is an apocalyptic number.

49405545 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

49405545 is an abundant number, since it is smaller than the sum of its proper divisors (55496343).

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

49405545 is a wasteful number, since it uses less digits than its factorization.

49405545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221 (or 209 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The square root of 49405545 is about 7028.9078098948. The cubic root of 49405545 is about 366.9373313738.

The spelling of 49405545 in words is "forty-nine million, four hundred five thousand, five hundred forty-five".