2255001520 has 40 divisors (see below), whose sum is σ = 5247347184. Its totient is φ = 901231872.

The previous prime is 2255001509. The next prime is 2255001523. The reversal of 2255001520 is 251005522.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 2255001491 and 2255001500.

It is not an unprimeable number, because it can be changed into a prime (2255001523) 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, 87567 + ... + 110353.

Almost surely, 2^2255001520 is an apocalyptic number.

2255001520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2255001520 is an abundant number, since it is smaller than the sum of its proper divisors (2992345664).

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

2255001520 is a wasteful number, since it uses less digits than its factorization.

2255001520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24037 (or 24031 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 2255001520 is about 47486.8562867663. The cubic root of 2255001520 is about 1311.3409185950.

The spelling of 2255001520 in words is "two billion, two hundred fifty-five million, one thousand, five hundred twenty".