15497798325 has 24 divisors (see below), whose sum is σ = 25634514048. Its totient is φ = 8261786880.

The previous prime is 15497798243. The next prime is 15497798347. The reversal of 15497798325 is 52389779451.

It is a happy number.

It is not a de Polignac number, because 15497798325 - 2¹⁴ = 15497781941 is a prime.

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, 126349 + ... + 216701.

It is an arithmetic number, because the mean of its divisors is an integer number (1068104752).

Almost surely, 2^15497798325 is an apocalyptic number.

15497798325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15497798325 is a deficient number, since it is larger than the sum of its proper divisors (10136715723).

15497798325 is a wasteful number, since it uses less digits than its factorization.

15497798325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92653 (or 92648 counting only the distinct ones).

The product of its digits is 19051200, while the sum is 60.

The spelling of 15497798325 in words is "fifteen billion, four hundred ninety-seven million, seven hundred ninety-eight thousand, three hundred twenty-five".