25071563 has 12 divisors (see below), whose sum is σ = 27681024. Its totient is φ = 22690800.

The previous prime is 25071521. The next prime is 25071581. The reversal of 25071563 is 36517052.

It is not a de Polignac number, because 25071563 - 2¹⁶ = 25006027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25071503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46073 + ... + 46613.

It is an arithmetic number, because the mean of its divisors is an integer number (2306752).

Almost surely, 2^25071563 is an apocalyptic number.

25071563 is a deficient number, since it is larger than the sum of its proper divisors (2609461).

25071563 is a wasteful number, since it uses less digits than its factorization.

25071563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 946 (or 935 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 25071563 is about 5007.1511860538. The cubic root of 25071563 is about 292.6805100028.

The spelling of 25071563 in words is "twenty-five million, seventy-one thousand, five hundred sixty-three".