725625534 has 16 divisors (see below), whose sum is σ = 1454364288. Its totient is φ = 241356312.

The previous prime is 725625533. The next prime is 725625557. The reversal of 725625534 is 435526527.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 725625492 and 725625501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725625533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126682 + ... + 132285.

It is an arithmetic number, because the mean of its divisors is an integer number (90897768).

Almost surely, 2^725625534 is an apocalyptic number.

725625534 is an abundant number, since it is smaller than the sum of its proper divisors (728738754).

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

725625534 is a wasteful number, since it uses less digits than its factorization.

725625534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259439.

The product of its digits is 252000, while the sum is 39.

The square root of 725625534 is about 26937.4374059598. The cubic root of 725625534 is about 898.6091826682.

The spelling of 725625534 in words is "seven hundred twenty-five million, six hundred twenty-five thousand, five hundred thirty-four".