1725571072 has 56 divisors (see below), whose sum is σ = 3544822476. Its totient is φ = 839319552.

The previous prime is 1725571049. The next prime is 1725571097. The reversal of 1725571072 is 2701755271.

It can be written as a sum of positive squares in 2 ways, for example, as 1725239296 + 331776 = 41536^2 + 576^2 .

It is a Harshad number since it is a multiple of its sum of digits (37).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 300258 + ... + 305950.

Almost surely, 2^1725571072 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 1725571072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1772411238).

1725571072 is an abundant number, since it is smaller than the sum of its proper divisors (1819251404).

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

1725571072 is an frugal number, since it uses more digits than its factorization.

1725571072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5756 (or 5732 counting only the distinct ones).

The product of its (nonzero) digits is 34300, while the sum is 37.

The square root of 1725571072 is about 41539.9936446793. The cubic root of 1725571072 is about 1199.4374845029.

The spelling of 1725571072 in words is "one billion, seven hundred twenty-five million, five hundred seventy-one thousand, seventy-two".