2051560655 has 8 divisors (see below), whose sum is σ = 2462247600. Its totient is φ = 1640998656.

The previous prime is 2051560633. The next prime is 2051560657. The reversal of 2051560655 is 5560651502.

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 2051560655 - 2⁶ = 2051560591 is a prime.

It is a super-2 number, since 2×2051560655² = 8417802242288058050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2051560657) 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, 9791 + ... + 64799.

It is an arithmetic number, because the mean of its divisors is an integer number (307780950).

Almost surely, 2^2051560655 is an apocalyptic number.

2051560655 is a deficient number, since it is larger than the sum of its proper divisors (410686945).

2051560655 is an equidigital number, since it uses as much as digits as its factorization.

2051560655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62473.

The product of its (nonzero) digits is 45000, while the sum is 35.

The square root of 2051560655 is about 45294.1569631227. The cubic root of 2051560655 is about 1270.6563773844.

The spelling of 2051560655 in words is "two billion, fifty-one million, five hundred sixty thousand, six hundred fifty-five".