72050725 has 6 divisors (see below), whose sum is σ = 89342930. Its totient is φ = 57640560.

The previous prime is 72050711. The next prime is 72050753. The reversal of 72050725 is 52705027.

It can be written as a sum of positive squares in 3 ways, for example, as 2461761 + 69588964 = 1569^2 + 8342^2 .

It is not a de Polignac number, because 72050725 - 2⁹ = 72050213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72050693 and 72050702.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1440990 + ... + 1441039.

Almost surely, 2^72050725 is an apocalyptic number.

It is an amenable number.

72050725 is a deficient number, since it is larger than the sum of its proper divisors (17292205).

72050725 is a wasteful number, since it uses less digits than its factorization.

72050725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2882039 (or 2882034 counting only the distinct ones).

The product of its (nonzero) digits is 4900, while the sum is 28.

The square root of 72050725 is about 8488.2698472657. The cubic root of 72050725 is about 416.1144382061.

The spelling of 72050725 in words is "seventy-two million, fifty thousand, seven hundred twenty-five".