725761550 has 48 divisors (see below), whose sum is σ = 1412454240. Its totient is φ = 277449920.

The previous prime is 725761499. The next prime is 725761559. The reversal of 725761550 is 55167527.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725761559) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 607754 + ... + 608946.

It is an arithmetic number, because the mean of its divisors is an integer number (29426130).

Almost surely, 2^725761550 is an apocalyptic number.

725761550 is a deficient number, since it is larger than the sum of its proper divisors (686692690).

725761550 is a wasteful number, since it uses less digits than its factorization.

725761550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1274 (or 1223 counting only the distinct ones).

The product of its (nonzero) digits is 73500, while the sum is 38.

The square root of 725761550 is about 26939.9619524601. The cubic root of 725761550 is about 898.6653262228.

The spelling of 725761550 in words is "seven hundred twenty-five million, seven hundred sixty-one thousand, five hundred fifty".