2545165240 has 16 divisors (see below), whose sum is σ = 5726621880. Its totient is φ = 1018066080.

The previous prime is 2545165229. The next prime is 2545165243. The reversal of 2545165240 is 425615452.

2545165240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 2545165196 and 2545165205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2545165243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31814526 + ... + 31814605.

Almost surely, 2^2545165240 is an apocalyptic number.

2545165240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2545165240 is an abundant number, since it is smaller than the sum of its proper divisors (3181456640).

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

2545165240 is a wasteful number, since it uses less digits than its factorization.

2545165240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63629142 (or 63629138 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 34.

The square root of 2545165240 is about 50449.6307221371. The cubic root of 2545165240 is about 1365.3332322968. Note that the first 3 decimals are identical.

The spelling of 2545165240 in words is "two billion, five hundred forty-five million, one hundred sixty-five thousand, two hundred forty".