15456242025 has 36 divisors (see below), whose sum is σ = 31638685312. Its totient is φ = 7065709920.

The previous prime is 15456241973. The next prime is 15456242089. The reversal of 15456242025 is 52024265451.

15456242025 is a `hidden beast` number, since 1 + 5 + 4 + 5 + 624 + 2 + 0 + 25 = 666.

It is not a de Polignac number, because 15456242025 - 2⁹ = 15456241513 is a prime.

It is a super-2 number, since 2×15456242025² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4905169 + ... + 4908318.

Almost surely, 2^15456242025 is an apocalyptic number.

15456242025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15456242025 is an abundant number, since it is smaller than the sum of its proper divisors (16182443287).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15456242025 is a wasteful number, since it uses less digits than its factorization.

15456242025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9813510 (or 9813502 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

The spelling of 15456242025 in words is "fifteen billion, four hundred fifty-six million, two hundred forty-two thousand, twenty-five".