725664133453 has 8 divisors (see below), whose sum is σ = 832889798208. Its totient is φ = 619328308704.

The previous prime is 725664133409. The next prime is 725664133457. The reversal of 725664133453 is 354331466527.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-725664133453 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 725664133397 and 725664133406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725664133457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 222458251 + ... + 222461512.

It is an arithmetic number, because the mean of its divisors is an integer number (104111224776).

Almost surely, 2^725664133453 is an apocalyptic number.

It is an amenable number.

725664133453 is a deficient number, since it is larger than the sum of its proper divisors (107225664755).

725664133453 is a wasteful number, since it uses less digits than its factorization.

725664133453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444920003.

The product of its digits is 5443200, while the sum is 49.

The spelling of 725664133453 in words is "seven hundred twenty-five billion, six hundred sixty-four million, one hundred thirty-three thousand, four hundred fifty-three".