725733097 has 4 divisors (see below), whose sum is σ = 729928260. Its totient is φ = 721537936.

The previous prime is 725733089. The next prime is 725733119. The reversal of 725733097 is 790337527.

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 372142681 + 353590416 = 19291^2 + 18804^2 .

It is a cyclic number.

It is not a de Polignac number, because 725733097 - 2³ = 725733089 is a prime.

It is a super-2 number, since 2×725733097² = 1053377056162422818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (725733997) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2097322 + ... + 2097667.

It is an arithmetic number, because the mean of its divisors is an integer number (182482065).

Almost surely, 2^725733097 is an apocalyptic number.

It is an amenable number.

725733097 is a deficient number, since it is larger than the sum of its proper divisors (4195163).

725733097 is a wasteful number, since it uses less digits than its factorization.

725733097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4195162.

The product of its (nonzero) digits is 277830, while the sum is 43.

The square root of 725733097 is about 26939.4338656179. The cubic root of 725733097 is about 898.6535822101.

The spelling of 725733097 in words is "seven hundred twenty-five million, seven hundred thirty-three thousand, ninety-seven".