2545742474 has 32 divisors (see below), whose sum is σ = 4421338560. Its totient is φ = 1096230960.

The previous prime is 2545742473. The next prime is 2545742483. The reversal of 2545742474 is 4742475452.

It is not an unprimeable number, because it can be changed into a prime (2545742473) 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, 25412 + ... + 75744.

It is an arithmetic number, because the mean of its divisors is an integer number (138166830).

Almost surely, 2^2545742474 is an apocalyptic number.

2545742474 is a deficient number, since it is larger than the sum of its proper divisors (1875596086).

2545742474 is a wasteful number, since it uses less digits than its factorization.

2545742474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50387 (or 50365 counting only the distinct ones).

The product of its digits is 1254400, while the sum is 44.

The square root of 2545742474 is about 50455.3512920087. The cubic root of 2545742474 is about 1365.4364419925.

The spelling of 2545742474 in words is "two billion, five hundred forty-five million, seven hundred forty-two thousand, four hundred seventy-four".