726254353573425 has 72 divisors (see below), whose sum is σ = 1335995469105336. Its totient is φ = 376856853073920.

The previous prime is 726254353573417. The next prime is 726254353573439. The reversal of 726254353573425 is 524375353452627.

726254353573425 is a `hidden beast` number, since 7 + 2 + 6 + 2 + 5 + 4 + 3 + 53 + 573 + 4 + 2 + 5 = 666.

It can be written as a sum of positive squares in 12 ways, for example, as 274983186568689 + 451271167004736 = 16582617^2 + 21243144^2 .

It is not a de Polignac number, because 726254353573425 - 2³ = 726254353573417 is a prime.

It is a Curzon 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, 309160897 + ... + 311501153.

It is an arithmetic number, because the mean of its divisors is an integer number (18555492626463).

Almost surely, 2^{726254353573425} is an apocalyptic number.

726254353573425 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

726254353573425 is a deficient number, since it is larger than the sum of its proper divisors (609741115531911).

726254353573425 is a wasteful number, since it uses less digits than its factorization.

726254353573425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2377587 (or 2377579 counting only the distinct ones).

The product of its digits is 635040000, while the sum is 63.

The spelling of 726254353573425 in words is "seven hundred twenty-six trillion, two hundred fifty-four billion, three hundred fifty-three million, five hundred seventy-three thousand, four hundred twenty-five".