61049492555 has 8 divisors (see below), whose sum is σ = 73326179232. Its totient is φ = 48795068608.

The previous prime is 61049492551. The next prime is 61049492561. The reversal of 61049492555 is 55529494016.

It is a happy number.

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 61049492555 - 2² = 61049492551 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61049492551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5559647 + ... + 5570616.

It is an arithmetic number, because the mean of its divisors is an integer number (9165772404).

Almost surely, 2^61049492555 is an apocalyptic number.

61049492555 is a deficient number, since it is larger than the sum of its proper divisors (12276686677).

61049492555 is a wasteful number, since it uses less digits than its factorization.

61049492555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11131365.

The product of its (nonzero) digits is 1944000, while the sum is 50.

The spelling of 61049492555 in words is "sixty-one billion, forty-nine million, four hundred ninety-two thousand, five hundred fifty-five".