61312055 has 8 divisors (see below), whose sum is σ = 84085152. Its totient is φ = 42042528.

The previous prime is 61312037. The next prime is 61312067. The reversal of 61312055 is 55021316.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61312055 - 2¹⁴ = 61295671 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61312055.

It is a congruent number.

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, 875852 + ... + 875921.

It is an arithmetic number, because the mean of its divisors is an integer number (10510644).

Almost surely, 2^61312055 is an apocalyptic number.

61312055 is a deficient number, since it is larger than the sum of its proper divisors (22773097).

61312055 is a wasteful number, since it uses less digits than its factorization.

61312055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1751785.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 61312055 is about 7830.2014661182. The cubic root of 61312055 is about 394.3198357226.

The spelling of 61312055 in words is "sixty-one million, three hundred twelve thousand, fifty-five".