1655241025 has 12 divisors (see below), whose sum is σ = 2072823804. Its totient is φ = 1311080000.

The previous prime is 1655241017. The next prime is 1655241037. The reversal of 1655241025 is 5201425561.

It can be written as a sum of positive squares in 6 ways, for example, as 47872561 + 1607368464 = 6919^2 + 40092^2 .

It is not a de Polignac number, because 1655241025 - 2³ = 1655241017 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 325246 + ... + 330295.

It is an arithmetic number, because the mean of its divisors is an integer number (172735317).

Almost surely, 2^1655241025 is an apocalyptic number.

It is an amenable number.

1655241025 is a deficient number, since it is larger than the sum of its proper divisors (417582779).

1655241025 is a wasteful number, since it uses less digits than its factorization.

1655241025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655652 (or 655647 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 31.

The square root of 1655241025 is about 40684.6534334508. The cubic root of 1655241025 is about 1182.9155674441.

Adding to 1655241025 its reverse (5201425561), we get a palindrome (6856666586).

The spelling of 1655241025 in words is "one billion, six hundred fifty-five million, two hundred forty-one thousand, twenty-five".