725565850 has 24 divisors (see below), whose sum is σ = 1393089408. Its totient is φ = 280863600.

The previous prime is 725565833. The next prime is 725565947. The reversal of 725565850 is 58565527.

It is a junction number, because it is equal to n+sod(n) for n = 725565797 and 725565806.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 232504 + ... + 235603.

It is an arithmetic number, because the mean of its divisors is an integer number (58045392).

Almost surely, 2^725565850 is an apocalyptic number.

725565850 is a deficient number, since it is larger than the sum of its proper divisors (667523558).

725565850 is a wasteful number, since it uses less digits than its factorization.

725565850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468150 (or 468145 counting only the distinct ones).

The product of its (nonzero) digits is 420000, while the sum is 43.

The square root of 725565850 is about 26936.3295569385. The cubic root of 725565850 is about 898.5845445877.

The spelling of 725565850 in words is "seven hundred twenty-five million, five hundred sixty-five thousand, eight hundred fifty".