1972958725 has 6 divisors (see below), whose sum is σ = 2446468850. Its totient is φ = 1578366960.

The previous prime is 1972958677. The next prime is 1972958737. The reversal of 1972958725 is 5278592791.

It is a happy number.

1972958725 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 44418²+1.

It can be written as a sum of positive squares in 3 ways, for example, as 1 + 1972958724 = 1^2 + 44418^2 .

It is not a de Polignac number, because 1972958725 - 2¹¹ = 1972956677 is a prime.

It is a super-2 number, since 2×1972958725² = 7785132261107251250, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 39459150 + ... + 39459199.

Almost surely, 2^1972958725 is an apocalyptic number.

It is an amenable number.

1972958725 is a deficient number, since it is larger than the sum of its proper divisors (473510125).

1972958725 is an equidigital number, since it uses as much as digits as its factorization.

1972958725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78918359 (or 78918354 counting only the distinct ones).

The product of its digits is 3175200, while the sum is 55.

The square root of 1972958725 is about 44418.0000112567. Note that the first 4 decimals coincide. The cubic root of 1972958725 is about 1254.2169525182.

The spelling of 1972958725 in words is "one billion, nine hundred seventy-two million, nine hundred fifty-eight thousand, seven hundred twenty-five".