25061565 has 16 divisors (see below), whose sum is σ = 40608000. Its totient is φ = 13196352.

The previous prime is 25061563. The next prime is 25061567. The reversal of 25061565 is 56516052.

It is an interprime number because it is at equal distance from previous prime (25061563) and next prime (25061567).

It is not a de Polignac number, because 25061565 - 2¹ = 25061563 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25061563) 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, 9390 + ... + 11759.

It is an arithmetic number, because the mean of its divisors is an integer number (2538000).

Almost surely, 2^25061565 is an apocalyptic number.

It is an amenable number.

25061565 is a deficient number, since it is larger than the sum of its proper divisors (15546435).

25061565 is a wasteful number, since it uses less digits than its factorization.

25061565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21236.

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 25061565 is about 5006.1527144105. The cubic root of 25061565 is about 292.6415999330.

The spelling of 25061565 in words is "twenty-five million, sixty-one thousand, five hundred sixty-five".