726753825 has 72 divisors (see below), whose sum is σ = 1575220608. Its totient is φ = 312675840.

The previous prime is 726753821. The next prime is 726753827. The reversal of 726753825 is 528357627.

726753825 is a `hidden beast` number, since 7 + 267 + 5 + 382 + 5 = 666.

It is not a de Polignac number, because 726753825 - 2² = 726753821 is a prime.

It is a super-2 number, since 2×726753825² = 1056342244304261250, which contains 22 as substring.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (726753821) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 13204 + ... + 40346.

It is an arithmetic number, because the mean of its divisors is an integer number (21878064).

Almost surely, 2^726753825 is an apocalyptic number.

726753825 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

726753825 is an abundant number, since it is smaller than the sum of its proper divisors (848466783).

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

726753825 is a wasteful number, since it uses less digits than its factorization.

726753825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27183 (or 27175 counting only the distinct ones).

The product of its digits is 705600, while the sum is 45.

The square root of 726753825 is about 26958.3720762215. The cubic root of 726753825 is about 899.0746971571.

The spelling of 726753825 in words is "seven hundred twenty-six million, seven hundred fifty-three thousand, eight hundred twenty-five".