654620285025 has 144 divisors (see below), whose sum is σ = 1346956455936. Its totient is φ = 297704885760.

The previous prime is 654620284999. The next prime is 654620285027. The reversal of 654620285025 is 520582026456.

It is a happy number.

654620285025 is a `hidden beast` number, since 6 + 546 + 2 + 0 + 2 + 85 + 0 + 25 = 666.

It is not a de Polignac number, because 654620285025 - 2⁶ = 654620284961 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (654620285027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 393637344 + ... + 393639006.

Almost surely, 2^654620285025 is an apocalyptic number.

It is an amenable number.

654620285025 is an abundant number, since it is smaller than the sum of its proper divisors (692336170911).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

654620285025 is a wasteful number, since it uses less digits than its factorization.

654620285025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2832 (or 2824 counting only the distinct ones).

The product of its (nonzero) digits is 1152000, while the sum is 45.

The spelling of 654620285025 in words is "six hundred fifty-four billion, six hundred twenty million, two hundred eighty-five thousand, twenty-five".