2145522504 has 32 divisors (see below), whose sum is σ = 5366672640. Its totient is φ = 714792000.

The previous prime is 2145522481. The next prime is 2145522529. The reversal of 2145522504 is 4052255412.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23914 + ... + 69734.

It is an arithmetic number, because the mean of its divisors is an integer number (167708520).

Almost surely, 2^2145522504 is an apocalyptic number.

2145522504 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2145522504 is an abundant number, since it is smaller than the sum of its proper divisors (3221150136).

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

2145522504 is a wasteful number, since it uses less digits than its factorization.

2145522504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47781 (or 47777 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 30.

The square root of 2145522504 is about 46319.7852326627. The cubic root of 2145522504 is about 1289.7662986294.

Adding to 2145522504 its reverse (4052255412), we get a palindrome (6197777916).

The spelling of 2145522504 in words is "two billion, one hundred forty-five million, five hundred twenty-two thousand, five hundred four".