61255680 has 104 divisors (see below), whose sum is σ = 196190832. Its totient is φ = 16318464.

The previous prime is 61255673. The next prime is 61255697. The reversal of 61255680 is 8655216.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60942 + ... + 61938.

Almost surely, 2^61255680 is an apocalyptic number.

61255680 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61255680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98095416).

61255680 is an abundant number, since it is smaller than the sum of its proper divisors (134935152).

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

61255680 is an equidigital number, since it uses as much as digits as its factorization.

61255680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1029 (or 1007 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 61255680 is about 7826.6007947256. The cubic root of 61255680 is about 394.1989427081.

The spelling of 61255680 in words is "sixty-one million, two hundred fifty-five thousand, six hundred eighty".