725570623240 has 16 divisors (see below), whose sum is σ = 1632533902380. Its totient is φ = 290228249280.

The previous prime is 725570623237. The next prime is 725570623247. The reversal of 725570623240 is 42326075527.

It can be written as a sum of positive squares in 2 ways, for example, as 725566647204 + 3976036 = 851802^2 + 1994^2 .

It is not an unprimeable number, because it can be changed into a prime (725570623247) 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, 9069632751 + ... + 9069632830.

Almost surely, 2^725570623240 is an apocalyptic number.

It is an amenable number.

725570623240 is an abundant number, since it is smaller than the sum of its proper divisors (906963279140).

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

725570623240 is a wasteful number, since it uses less digits than its factorization.

725570623240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18139265592 (or 18139265588 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 43.

Adding to 725570623240 its reverse (42326075527), we get a palindrome (767896698767).

The spelling of 725570623240 in words is "seven hundred twenty-five billion, five hundred seventy million, six hundred twenty-three thousand, two hundred forty".