2545031520 has 72 divisors (see below), whose sum is σ = 8684924976. Its totient is φ = 678674688.

The previous prime is 2545031449. The next prime is 2545031537. The reversal of 2545031520 is 251305452.

It is a happy number.

2545031520 is a `hidden beast` number, since 2 + 5 + 4 + 503 + 152 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 882252 + ... + 885131.

It is an arithmetic number, because the mean of its divisors is an integer number (120623958).

Almost surely, 2^2545031520 is an apocalyptic number.

2545031520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2545031520 is an abundant number, since it is smaller than the sum of its proper divisors (6139893456).

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

2545031520 is a wasteful number, since it uses less digits than its factorization.

2545031520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1767404 (or 1767393 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 2545031520 is about 50448.3054224817. The cubic root of 2545031520 is about 1365.3093208752.

Adding to 2545031520 its reverse (251305452), we get a palindrome (2796336972).

The spelling of 2545031520 in words is "two billion, five hundred forty-five million, thirty-one thousand, five hundred twenty".