2555661446 has 32 divisors (see below), whose sum is σ = 4261584096. Its totient is φ = 1141920000.

The previous prime is 2555661439. The next prime is 2555661457. The reversal of 2555661446 is 6441665552.

2555661446 = 6985² + 6986² + ... + 7036².

It is a junction number, because it is equal to n+sod(n) for n = 2555661397 and 2555661406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130496 + ... + 148796.

It is an arithmetic number, because the mean of its divisors is an integer number (133174503).

Almost surely, 2^2555661446 is an apocalyptic number.

2555661446 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2555661446 is a deficient number, since it is larger than the sum of its proper divisors (1705922650).

2555661446 is a wasteful number, since it uses less digits than its factorization.

2555661446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18488.

The product of its digits is 864000, while the sum is 44.

The square root of 2555661446 is about 50553.5502808655. The cubic root of 2555661446 is about 1367.2075263054.

The spelling of 2555661446 in words is "two billion, five hundred fifty-five million, six hundred sixty-one thousand, four hundred forty-six".