61049580 has 48 divisors (see below), whose sum is σ = 171324384. Its totient is φ = 16243200.

The previous prime is 61049543. The next prime is 61049581. The reversal of 61049580 is 8594016.

It is not an unprimeable number, because it can be changed into a prime (61049581) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35214 + ... + 36906.

It is an arithmetic number, because the mean of its divisors is an integer number (3569258).

Almost surely, 2^61049580 is an apocalyptic number.

61049580 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

61049580 is an abundant number, since it is smaller than the sum of its proper divisors (110274804).

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

61049580 is a wasteful number, since it uses less digits than its factorization.

61049580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2306 (or 2304 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 61049580 is about 7813.4230654688. The cubic root of 61049580 is about 393.7563405379.

The spelling of 61049580 in words is "sixty-one million, forty-nine thousand, five hundred eighty".