25572061 has 2 divisors, whose sum is σ = 25572062. Its totient is φ = 25572060.

The previous prime is 25572049. The next prime is 25572077. The reversal of 25572061 is 16027552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24940036 + 632025 = 4994^2 + 795^2 .

It is a cyclic number.

It is not a de Polignac number, because 25572061 - 2¹⁹ = 25047773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25572031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12786030 + 12786031.

It is an arithmetic number, because the mean of its divisors is an integer number (12786031).

Almost surely, 2^25572061 is an apocalyptic number.

It is an amenable number.

25572061 is a deficient number, since it is larger than the sum of its proper divisors (1).

25572061 is an equidigital number, since it uses as much as digits as its factorization.

25572061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 25572061 is about 5056.8825376906. The cubic root of 25572061 is about 294.6152640340.

The spelling of 25572061 in words is "twenty-five million, five hundred seventy-two thousand, sixty-one".