61795590 has 32 divisors (see below), whose sum is σ = 148805856. Its totient is φ = 16423680.

The previous prime is 61795589. The next prime is 61795627. The reversal of 61795590 is 9559716.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6100 + ... + 12680.

It is an arithmetic number, because the mean of its divisors is an integer number (4650183).

Almost surely, 2^61795590 is an apocalyptic number.

61795590 is an abundant number, since it is smaller than the sum of its proper divisors (87010266).

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

61795590 is a wasteful number, since it uses less digits than its factorization.

61795590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6904.

The product of its (nonzero) digits is 85050, while the sum is 42.

The square root of 61795590 is about 7861.0171097639. The cubic root of 61795590 is about 395.3537182984.

The spelling of 61795590 in words is "sixty-one million, seven hundred ninety-five thousand, five hundred ninety".