61055319 has 8 divisors (see below), whose sum is σ = 87669232. Its totient is φ = 37572480.

The previous prime is 61055297. The next prime is 61055321. The reversal of 61055319 is 91355016.

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

It is not a de Polignac number, because 61055319 - 2²⁰ = 60006743 is a prime.

It is a super-2 number, since 2×61055319² = 7455503956383522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61055329) 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, 782722 + ... + 782799.

It is an arithmetic number, because the mean of its divisors is an integer number (10958654).

Almost surely, 2^61055319 is an apocalyptic number.

61055319 is a deficient number, since it is larger than the sum of its proper divisors (26613913).

61055319 is a wasteful number, since it uses less digits than its factorization.

61055319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1565537.

The product of its (nonzero) digits is 4050, while the sum is 30.

The square root of 61055319 is about 7813.7903094465. The cubic root of 61055319 is about 393.7686785798.

The spelling of 61055319 in words is "sixty-one million, fifty-five thousand, three hundred nineteen".