2545021344 has 48 divisors (see below), whose sum is σ = 6691664448. Its totient is φ = 846945792.

The previous prime is 2545021343. The next prime is 2545021361. The reversal of 2545021344 is 4431205452.

2545021344 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-3 number, since 3×2545021344³ (a number of 29 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (2545021343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37749 + ... + 80715.

It is an arithmetic number, because the mean of its divisors is an integer number (139409676).

Almost surely, 2^2545021344 is an apocalyptic number.

2545021344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2545021344 is an abundant number, since it is smaller than the sum of its proper divisors (4146643104).

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

2545021344 is a wasteful number, since it uses less digits than its factorization.

2545021344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43597 (or 43589 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 2545021344 is about 50448.2045666642. The cubic root of 2545021344 is about 1365.3075011982.

Adding to 2545021344 its reverse (4431205452), we get a palindrome (6976226796).

The spelling of 2545021344 in words is "two billion, five hundred forty-five million, twenty-one thousand, three hundred forty-four".