655550061 has 8 divisors (see below), whose sum is σ = 874512000. Its totient is φ = 436810752.

The previous prime is 655550047. The next prime is 655550101. The reversal of 655550061 is 160055556.

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

It is not a de Polignac number, because 655550061 - 2⁹ = 655549549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655552061) 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, 48660 + ... + 60653.

It is an arithmetic number, because the mean of its divisors is an integer number (109314000).

Almost surely, 2^655550061 is an apocalyptic number.

It is an amenable number.

655550061 is a deficient number, since it is larger than the sum of its proper divisors (218961939).

655550061 is a wasteful number, since it uses less digits than its factorization.

655550061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111315.

The product of its (nonzero) digits is 22500, while the sum is 33.

The square root of 655550061 is about 25603.7118598066. The cubic root of 655550061 is about 868.6975980952.

It can be divided in two parts, 6555 and 50061, that added together give a triangular number (56616 = T₃₃₆).

The spelling of 655550061 in words is "six hundred fifty-five million, five hundred fifty thousand, sixty-one".