1655425205 has 8 divisors (see below), whose sum is σ = 2270297472. Its totient is φ = 1135148688.

The previous prime is 1655425181. The next prime is 1655425243. The reversal of 1655425205 is 5025245561.

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 1655425205 - 2³⁰ = 581683381 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 47297863 = 1655425205 / (1 + 6 + 5 + 5 + 4 + 2 + 5 + 2 + 0 + 5).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23648897 + ... + 23648966.

It is an arithmetic number, because the mean of its divisors is an integer number (283787184).

Almost surely, 2^1655425205 is an apocalyptic number.

It is an amenable number.

1655425205 is a deficient number, since it is larger than the sum of its proper divisors (614872267).

1655425205 is an equidigital number, since it uses as much as digits as its factorization.

1655425205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47297875.

The product of its (nonzero) digits is 60000, while the sum is 35.

The square root of 1655425205 is about 40686.9168775419. The cubic root of 1655425205 is about 1182.9594404724.

The spelling of 1655425205 in words is "one billion, six hundred fifty-five million, four hundred twenty-five thousand, two hundred five".