49661580 has 24 divisors (see below), whose sum is σ = 139052592. Its totient is φ = 13243072.

The previous prime is 49661561. The next prime is 49661587. The reversal of 49661580 is 8516694.

It is not an unprimeable number, because it can be changed into a prime (49661587) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 413787 + ... + 413906.

It is an arithmetic number, because the mean of its divisors is an integer number (5793858).

Almost surely, 2^49661580 is an apocalyptic number.

It is an amenable number.

49661580 is an abundant number, since it is smaller than the sum of its proper divisors (89391012).

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

49661580 is a wasteful number, since it uses less digits than its factorization.

49661580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 827705 (or 827703 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 49661580 is about 7047.0972747650. The cubic root of 49661580 is about 367.5701009316.

The spelling of 49661580 in words is "forty-nine million, six hundred sixty-one thousand, five hundred eighty".