1655256061 has 8 divisors (see below), whose sum is σ = 1694585024. Its totient is φ = 1615965120.

The previous prime is 1655256037. The next prime is 1655256089. The reversal of 1655256061 is 1606525561.

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 1655256061 - 2⁷ = 1655255933 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1655256061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1655256661) 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, 91045 + ... + 107701.

It is an arithmetic number, because the mean of its divisors is an integer number (211823128).

Almost surely, 2^1655256061 is an apocalyptic number.

It is an amenable number.

1655256061 is a deficient number, since it is larger than the sum of its proper divisors (39328963).

1655256061 is a wasteful number, since it uses less digits than its factorization.

1655256061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19011.

The product of its (nonzero) digits is 54000, while the sum is 37.

The square root of 1655256061 is about 40684.8382201527. The cubic root of 1655256061 is about 1182.9191492517.

The spelling of 1655256061 in words is "one billion, six hundred fifty-five million, two hundred fifty-six thousand, sixty-one".