1525224545 has 32 divisors (see below), whose sum is σ = 2043595008. Its totient is φ = 1085453568.

The previous prime is 1525224511. The next prime is 1525224587. The reversal of 1525224545 is 5454225251.

It is a cyclic number.

It is not a de Polignac number, because 1525224545 - 2²² = 1521030241 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 254372 + ... + 260298.

It is an arithmetic number, because the mean of its divisors is an integer number (63862344).

Almost surely, 2^1525224545 is an apocalyptic number.

It is an amenable number.

1525224545 is a deficient number, since it is larger than the sum of its proper divisors (518370463).

1525224545 is a wasteful number, since it uses less digits than its factorization.

1525224545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6089.

The product of its digits is 80000, while the sum is 35.

The square root of 1525224545 is about 39054.1232778307. The cubic root of 1525224545 is about 1151.0952501977.

Adding to 1525224545 its reverse (5454225251), we get a palindrome (6979449796).

The spelling of 1525224545 in words is "one billion, five hundred twenty-five million, two hundred twenty-four thousand, five hundred forty-five".