2545654444 has 24 divisors (see below), whose sum is σ = 4652702208. Its totient is φ = 1216409040.

The previous prime is 2545654429. The next prime is 2545654471. The reversal of 2545654444 is 4444565452.

It is a self number, because there is not a number n which added to its sum of digits gives 2545654444.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97549 + ... + 120859.

It is an arithmetic number, because the mean of its divisors is an integer number (193862592).

Almost surely, 2^2545654444 is an apocalyptic number.

It is an amenable number.

2545654444 is a deficient number, since it is larger than the sum of its proper divisors (2107047764).

2545654444 is a wasteful number, since it uses less digits than its factorization.

2545654444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24525 (or 24523 counting only the distinct ones).

The product of its digits is 1536000, while the sum is 43.

The square root of 2545654444 is about 50454.4789290307. The cubic root of 2545654444 is about 1365.4207031977.

The spelling of 2545654444 in words is "two billion, five hundred forty-five million, six hundred fifty-four thousand, four hundred forty-four".