2545560 has 64 divisors (see below), whose sum is σ = 8488800. Its totient is φ = 678528.

The previous prime is 2545553. The next prime is 2545561. The reversal of 2545560 is 655452.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2545561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99 + ... + 2258.

2^2545560 is an apocalyptic number.

2545560 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 2545560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4244400).

2545560 is an abundant number, since it is smaller than the sum of its proper divisors (5943240).

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

2545560 is a wasteful number, since it uses less digits than its factorization.

2545560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2377 (or 2367 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 2545560 is about 1595.4811186598. The cubic root of 2545560 is about 136.5403817247.

The spelling of 2545560 in words is "two million, five hundred forty-five thousand, five hundred sixty".