242664052725 has 72 divisors (see below), whose sum is σ = 442151556392. Its totient is φ = 127187366400.

The previous prime is 242664052669. The next prime is 242664052777. The reversal of 242664052725 is 527250466242.

It is a happy number.

242664052725 is a `hidden beast` number, since 2 + 4 + 2 + 66 + 40 + 527 + 25 = 666.

It can be written as a sum of positive squares in 12 ways, for example, as 185870490129 + 56793562596 = 431127^2 + 238314^2 .

It is not a de Polignac number, because 242664052725 - 2⁸ = 242664052469 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 16970679 + ... + 16984971.

Almost surely, 2^242664052725 is an apocalyptic number.

242664052725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

242664052725 is a deficient number, since it is larger than the sum of its proper divisors (199487503667).

242664052725 is a wasteful number, since it uses less digits than its factorization.

242664052725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15607 (or 15599 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 45.

The spelling of 242664052725 in words is "two hundred forty-two billion, six hundred sixty-four million, fifty-two thousand, seven hundred twenty-five".