725465424 has 80 divisors (see below), whose sum is σ = 1907002944. Its totient is φ = 237619200.

The previous prime is 725465423. The next prime is 725465483. The reversal of 725465424 is 424564527.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725465423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 710034 + ... + 711054.

Almost surely, 2^725465424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 725465424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (953501472).

725465424 is an abundant number, since it is smaller than the sum of its proper divisors (1181537520).

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

725465424 is a wasteful number, since it uses less digits than its factorization.

725465424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1276 (or 1270 counting only the distinct ones).

The product of its digits is 268800, while the sum is 39.

The square root of 725465424 is about 26934.4653557482. The cubic root of 725465424 is about 898.5430848014.

The spelling of 725465424 in words is "seven hundred twenty-five million, four hundred sixty-five thousand, four hundred twenty-four".