725750418101 has 4 divisors (see below), whose sum is σ = 725760874092. Its totient is φ = 725739962112.

The previous prime is 725750418097. The next prime is 725750418121. The reversal of 725750418101 is 101814057527.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 352154417476 + 373596000625 = 593426^2 + 611225^2 .

It is a cyclic number.

It is not a de Polignac number, because 725750418101 - 2² = 725750418097 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725750418121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5123180 + ... + 5262933.

It is an arithmetic number, because the mean of its divisors is an integer number (181440218523).

Almost surely, 2^725750418101 is an apocalyptic number.

It is an amenable number.

725750418101 is a deficient number, since it is larger than the sum of its proper divisors (10455991).

725750418101 is a wasteful number, since it uses less digits than its factorization.

725750418101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10455990.

The product of its (nonzero) digits is 78400, while the sum is 41.

The spelling of 725750418101 in words is "seven hundred twenty-five billion, seven hundred fifty million, four hundred eighteen thousand, one hundred one".