2656251603 has 8 divisors (see below), whose sum is σ = 3935187600. Its totient is φ = 1770834384.

The previous prime is 2656251583. The next prime is 2656251617. The reversal of 2656251603 is 3061526562.

It is a happy number.

2656251603 is a `hidden beast` number, since 26 + 5 + 6 + 25 + 1 + 603 = 666.

It is not a de Polignac number, because 2656251603 - 2¹² = 2656247507 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2656251673) 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, 49189818 + ... + 49189871.

It is an arithmetic number, because the mean of its divisors is an integer number (491898450).

Almost surely, 2^2656251603 is an apocalyptic number.

2656251603 is a deficient number, since it is larger than the sum of its proper divisors (1278935997).

2656251603 is an equidigital number, since it uses as much as digits as its factorization.

2656251603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98379698 (or 98379692 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 2656251603 is about 51538.8358716027. The cubic root of 2656251603 is about 1384.9148427791.

The spelling of 2656251603 in words is "two billion, six hundred fifty-six million, two hundred fifty-one thousand, six hundred three".