15249923980425 has 120 divisors (see below), whose sum is σ = 29175391220184. Its totient is φ = 7870517591040.

The previous prime is 15249923980411. The next prime is 15249923980433. The reversal of 15249923980425 is 52408932994251.

15249923980425 is a `hidden beast` number, since 1 + 5 + 2 + 49 + 92 + 3 + 9 + 80 + 425 = 666.

It can be written as a sum of positive squares in 12 ways, for example, as 5726410712064 + 9523513268361 = 2392992^2 + 3086019^2 .

It is not a de Polignac number, because 15249923980425 - 2²² = 15249919786121 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 6861499 + ... + 8807951.

Almost surely, 2^{15249923980425} is an apocalyptic number.

15249923980425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15249923980425 is a deficient number, since it is larger than the sum of its proper divisors (13925467239759).

15249923980425 is a wasteful number, since it uses less digits than its factorization.

15249923980425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1946601 (or 1946587 counting only the distinct ones).

The product of its (nonzero) digits is 55987200, while the sum is 63.

The spelling of 15249923980425 in words is "fifteen trillion, two hundred forty-nine billion, nine hundred twenty-three million, nine hundred eighty thousand, four hundred twenty-five".