2545401747 has 16 divisors (see below), whose sum is σ = 4082850560. Its totient is φ = 1377961632.

The previous prime is 2545401673. The next prime is 2545401763. The reversal of 2545401747 is 7471045452.

It is not a de Polignac number, because 2545401747 - 2⁸ = 2545401491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2545401767) 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, 3189328 + ... + 3190125.

It is an arithmetic number, because the mean of its divisors is an integer number (255178160).

Almost surely, 2^2545401747 is an apocalyptic number.

2545401747 is a deficient number, since it is larger than the sum of its proper divisors (1537448813).

2545401747 is a wasteful number, since it uses less digits than its factorization.

2545401747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6379482.

The product of its (nonzero) digits is 156800, while the sum is 39.

The square root of 2545401747 is about 50451.9746590755. The cubic root of 2545401747 is about 1365.3755217404.

The spelling of 2545401747 in words is "two billion, five hundred forty-five million, four hundred one thousand, seven hundred forty-seven".