49555660 has 72 divisors (see below), whose sum is σ = 132091344. Its totient is φ = 15442560.

The previous prime is 49555631. The next prime is 49555699. The reversal of 49555660 is 6655594.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8482 + ... + 13078.

It is an arithmetic number, because the mean of its divisors is an integer number (1834602).

Almost surely, 2^49555660 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49555660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66045672).

49555660 is an abundant number, since it is smaller than the sum of its proper divisors (82535684).

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

49555660 is a wasteful number, since it uses less digits than its factorization.

49555660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4631 (or 4622 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 40.

The square root of 49555660 is about 7039.5781123587. The cubic root of 49555660 is about 367.3085926913.

It can be divided in two parts, 495556 and 60, that added together give a square (495616 = 704²).

The spelling of 49555660 in words is "forty-nine million, five hundred fifty-five thousand, six hundred sixty".