544540236425 has 12 divisors (see below), whose sum is σ = 675252317916. Its totient is φ = 435617721600.

The previous prime is 544540236407. The next prime is 544540236431. The reversal of 544540236425 is 524632045445.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 207035010121 + 337505226304 = 455011^2 + 580952^2 .

It is a de Polignac number, because none of the positive numbers 2^k-544540236425 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 441077 + ... + 1132973.

It is an arithmetic number, because the mean of its divisors is an integer number (56271026493).

Almost surely, 2^544540236425 is an apocalyptic number.

It is an amenable number.

544540236425 is a deficient number, since it is larger than the sum of its proper divisors (130712081491).

544540236425 is a wasteful number, since it uses less digits than its factorization.

544540236425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723388 (or 723383 counting only the distinct ones).

The product of its (nonzero) digits is 2304000, while the sum is 44.

The spelling of 544540236425 in words is "five hundred forty-four billion, five hundred forty million, two hundred thirty-six thousand, four hundred twenty-five".