1725506172 has 48 divisors (see below), whose sum is σ = 4817656480. Its totient is φ = 530924544.

The previous prime is 1725506089. The next prime is 1725506179. The reversal of 1725506172 is 2716055271.

1725506172 is a `hidden beast` number, since 17 + 25 + 5 + 0 + 617 + 2 = 666.

It is a super-2 number, since 2×1725506172² = 5954743099220187168, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1725506179) 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, 613093 + ... + 615900.

Almost surely, 2^1725506172 is an apocalyptic number.

1725506172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1725506172 is an abundant number, since it is smaller than the sum of its proper divisors (3092150308).

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

1725506172 is a wasteful number, since it uses less digits than its factorization.

1725506172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1229019 (or 1229011 counting only the distinct ones).

The product of its (nonzero) digits is 29400, while the sum is 36.

The square root of 1725506172 is about 41539.2124624432. The cubic root of 1725506172 is about 1199.4224470718.

The spelling of 1725506172 in words is "one billion, seven hundred twenty-five million, five hundred six thousand, one hundred seventy-two".