725533478 has 4 divisors (see below), whose sum is σ = 1088300220. Its totient is φ = 362766738.

The previous prime is 725533469. The next prime is 725533511. The reversal of 725533478 is 874335527.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 181383368 + ... + 181383371.

It is an arithmetic number, because the mean of its divisors is an integer number (272075055).

Almost surely, 2^725533478 is an apocalyptic number.

725533478 is a deficient number, since it is larger than the sum of its proper divisors (362766742).

725533478 is a wasteful number, since it uses less digits than its factorization.

725533478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362766741.

The product of its digits is 705600, while the sum is 44.

The square root of 725533478 is about 26935.7286517369. The cubic root of 725533478 is about 898.5711805760.

The spelling of 725533478 in words is "seven hundred twenty-five million, five hundred thirty-three thousand, four hundred seventy-eight".