15120453525 has 12 divisors (see below), whose sum is σ = 24999149952. Its totient is φ = 8064241840.

The previous prime is 15120453431. The next prime is 15120453527. The reversal of 15120453525 is 52535402151.

It is not a de Polignac number, because 15120453525 - 2¹¹ = 15120451477 is a prime.

It is a super-2 number, since 2×15120453525² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15120453527) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 100802949 + ... + 100803098.

It is an arithmetic number, because the mean of its divisors is an integer number (2083262496).

Almost surely, 2^15120453525 is an apocalyptic number.

15120453525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15120453525 is a deficient number, since it is larger than the sum of its proper divisors (9878696427).

15120453525 is a wasteful number, since it uses less digits than its factorization.

15120453525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201606060 (or 201606055 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 33.

Adding to 15120453525 its reverse (52535402151), we get a palindrome (67655855676).

The spelling of 15120453525 in words is "fifteen billion, one hundred twenty million, four hundred fifty-three thousand, five hundred twenty-five".