2520432045 has 40 divisors (see below), whose sum is σ = 4640246424. Its totient is φ = 1307892096.

The previous prime is 2520432041. The next prime is 2520432127. The reversal of 2520432045 is 5402340252.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1122719049 + 1397712996 = 33507^2 + 37386^2 .

It is not a de Polignac number, because 2520432045 - 2² = 2520432041 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2520432041) by changing a digit.

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 39 ways as a sum of consecutive naturals, for example, 69114 + ... + 99083.

Almost surely, 2^2520432045 is an apocalyptic number.

It is an amenable number.

2520432045 is a deficient number, since it is larger than the sum of its proper divisors (2119814379).

2520432045 is a wasteful number, since it uses less digits than its factorization.

2520432045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168251 (or 168242 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 2520432045 is about 50203.9046788196. The cubic root of 2520432045 is about 1360.8961878995.

Adding to 2520432045 its reverse (5402340252), we get a palindrome (7922772297).

The spelling of 2520432045 in words is "two billion, five hundred twenty million, four hundred thirty-two thousand, forty-five".