1525225352445 has 24 divisors (see below), whose sum is σ = 2644146550656. Its totient is φ = 813323488608.

The previous prime is 1525225352323. The next prime is 1525225352611. The reversal of 1525225352445 is 5442535225251.

1525225352445 is a `hidden beast` number, since 1 + 5 + 2 + 52 + 2 + 535 + 24 + 45 = 666.

It is not a de Polignac number, because 1525225352445 - 2²¹ = 1525223255293 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 1525225352445.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2424049 + ... + 2987718.

It is an arithmetic number, because the mean of its divisors is an integer number (110172772944).

Almost surely, 2^{1525225352445} is an apocalyptic number.

1525225352445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1525225352445 is a deficient number, since it is larger than the sum of its proper divisors (1118921198211).

1525225352445 is a wasteful number, since it uses less digits than its factorization.

1525225352445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5418041 (or 5418038 counting only the distinct ones).

The product of its digits is 2400000, while the sum is 45.

The spelling of 1525225352445 in words is "one trillion, five hundred twenty-five billion, two hundred twenty-five million, three hundred fifty-two thousand, four hundred forty-five".