725150017 has 8 divisors (see below), whose sum is σ = 758586600. Its totient is φ = 692275584.

The previous prime is 725150009. The next prime is 725150053. The reversal of 725150017 is 710051527.

It can be written as a sum of positive squares in 4 ways, for example, as 1324801 + 723825216 = 1151^2 + 26904^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 725150017 - 2³ = 725150009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (725150057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137898 + ... + 143059.

It is an arithmetic number, because the mean of its divisors is an integer number (94823325).

Almost surely, 2^725150017 is an apocalyptic number.

It is an amenable number.

725150017 is a deficient number, since it is larger than the sum of its proper divisors (33436583).

725150017 is a wasteful number, since it uses less digits than its factorization.

725150017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281075.

The product of its (nonzero) digits is 2450, while the sum is 28.

The square root of 725150017 is about 26928.6096373355. The cubic root of 725150017 is about 898.4128475536.

The spelling of 725150017 in words is "seven hundred twenty-five million, one hundred fifty thousand, seventeen".