2545742500 has 60 divisors (see below), whose sum is σ = 6362363392. Its totient is φ = 872820000.

The previous prime is 2545742497. The next prime is 2545742501. The reversal of 2545742500 is 52475452.

It is not an unprimeable number, because it can be changed into a prime (2545742501) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 55236 + ... + 90235.

Almost surely, 2^2545742500 is an apocalyptic number.

2545742500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2545742500 is an abundant number, since it is smaller than the sum of its proper divisors (3816620892).

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

2545742500 is a wasteful number, since it uses less digits than its factorization.

2545742500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145502 (or 145485 counting only the distinct ones).

The product of its (nonzero) digits is 56000, while the sum is 34.

The square root of 2545742500 is about 50455.3515496622. The cubic root of 2545742500 is about 1365.4364466410.

The spelling of 2545742500 in words is "two billion, five hundred forty-five million, seven hundred forty-two thousand, five hundred".