2255225062640 has 160 divisors (see below), whose sum is σ = 6011291252736. Its totient is φ = 779360762880.

The previous prime is 2255225062553. The next prime is 2255225062691. The reversal of 2255225062640 is 462605225522.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 594689 + ... + 2205471.

Almost surely, 2^{2255225062640} is an apocalyptic number.

2255225062640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2255225062640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3005645626368).

2255225062640 is an abundant number, since it is smaller than the sum of its proper divisors (3756066190096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2255225062640 is a wasteful number, since it uses less digits than its factorization.

2255225062640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1610887 (or 1610881 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 41.

The spelling of 2255225062640 in words is "two trillion, two hundred fifty-five billion, two hundred twenty-five million, sixty-two thousand, six hundred forty".