655554056225 has 12 divisors (see below), whose sum is σ = 812913803520. Its totient is φ = 524425971600.

The previous prime is 655554056189. The next prime is 655554056263. The reversal of 655554056225 is 522650455556.

It is not a de Polignac number, because 655554056225 - 2¹² = 655554052129 is a prime.

It is a super-2 number, since 2×655554056225² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 371696 + ... + 1203854.

It is an arithmetic number, because the mean of its divisors is an integer number (67742816960).

Almost surely, 2^655554056225 is an apocalyptic number.

It is an amenable number.

655554056225 is a deficient number, since it is larger than the sum of its proper divisors (157359747295).

655554056225 is a wasteful number, since it uses less digits than its factorization.

655554056225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 863680 (or 863675 counting only the distinct ones).

The product of its (nonzero) digits is 9000000, while the sum is 50.

The spelling of 655554056225 in words is "six hundred fifty-five billion, five hundred fifty-four million, fifty-six thousand, two hundred twenty-five".