2545431544 has 8 divisors (see below), whose sum is σ = 4772684160. Its totient is φ = 1272715768.

The previous prime is 2545431503. The next prime is 2545431557. The reversal of 2545431544 is 4451345452.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×2545431544³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159089464 + ... + 159089479.

It is an arithmetic number, because the mean of its divisors is an integer number (596585520).

Almost surely, 2^2545431544 is an apocalyptic number.

It is an amenable number.

2545431544 is a deficient number, since it is larger than the sum of its proper divisors (2227252616).

2545431544 is a wasteful number, since it uses less digits than its factorization.

2545431544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318178949 (or 318178945 counting only the distinct ones).

The product of its digits is 192000, while the sum is 37.

The square root of 2545431544 is about 50452.2699588433. The cubic root of 2545431544 is about 1365.3808495091.

Adding to 2545431544 its reverse (4451345452), we get a palindrome (6996776996).

The spelling of 2545431544 in words is "two billion, five hundred forty-five million, four hundred thirty-one thousand, five hundred forty-four".