2545782750 has 384 divisors, whose sum is σ = 8450956800. Its totient is φ = 565185600.

The previous prime is 2545782739. The next prime is 2545782769. The reversal of 2545782750 is 572875452.

2545782750 is a `hidden beast` number, since 2 + 5 + 4 + 578 + 2 + 75 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 2545782696 and 2545782705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 14222161 + ... + 14222339.

It is an arithmetic number, because the mean of its divisors is an integer number (22007700).

Almost surely, 2^2545782750 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2545782750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4225478400).

2545782750 is an abundant number, since it is smaller than the sum of its proper divisors (5905174050).

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

2545782750 is a wasteful number, since it uses less digits than its factorization.

2545782750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262 (or 239 counting only the distinct ones).

The product of its (nonzero) digits is 784000, while the sum is 45.

The square root of 2545782750 is about 50455.7504155869. The cubic root of 2545782750 is about 1365.4436427769.

The spelling of 2545782750 in words is "two billion, five hundred forty-five million, seven hundred eighty-two thousand, seven hundred fifty".