61104455 has 4 divisors (see below), whose sum is σ = 73325352. Its totient is φ = 48883560.

The previous prime is 61104451. The next prime is 61104481. The reversal of 61104455 is 55440116.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 61104455 - 2² = 61104451 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61104451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6110441 + ... + 6110450.

It is an arithmetic number, because the mean of its divisors is an integer number (18331338).

Almost surely, 2^61104455 is an apocalyptic number.

61104455 is a deficient number, since it is larger than the sum of its proper divisors (12220897).

61104455 is a wasteful number, since it uses less digits than its factorization.

61104455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12220896.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 61104455 is about 7816.9338618156. The cubic root of 61104455 is about 393.8742824272.

The spelling of 61104455 in words is "sixty-one million, one hundred four thousand, four hundred fifty-five".