1672072725 has 24 divisors (see below), whose sum is σ = 2766385440. Its totient is φ = 891161920.

The previous prime is 1672072667. The next prime is 1672072739. The reversal of 1672072725 is 5272702761.

It is not a de Polignac number, because 1672072725 - 2¹⁰ = 1672071701 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 115966 + ... + 129584.

It is an arithmetic number, because the mean of its divisors is an integer number (115266060).

Almost surely, 2^1672072725 is an apocalyptic number.

1672072725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1672072725 is a deficient number, since it is larger than the sum of its proper divisors (1094312715).

1672072725 is a wasteful number, since it uses less digits than its factorization.

1672072725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15269 (or 15264 counting only the distinct ones).

The product of its (nonzero) digits is 82320, while the sum is 39.

The square root of 1672072725 is about 40890.9858648578. The cubic root of 1672072725 is about 1186.9116361434.

The spelling of 1672072725 in words is "one billion, six hundred seventy-two million, seventy-two thousand, seven hundred twenty-five".