25702089 has 16 divisors (see below), whose sum is σ = 40077312. Its totient is φ = 14344848.

The previous prime is 25702081. The next prime is 25702099. The reversal of 25702089 is 98020752.

It is not a de Polignac number, because 25702089 - 2³ = 25702081 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25702081) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 13329 + ... + 15134.

It is an arithmetic number, because the mean of its divisors is an integer number (2504832).

Almost surely, 2^25702089 is an apocalyptic number.

It is an amenable number.

25702089 is a deficient number, since it is larger than the sum of its proper divisors (14375223).

25702089 is a wasteful number, since it uses less digits than its factorization.

25702089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28516.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 25702089 is about 5069.7227734857. The cubic root of 25702089 is about 295.1137701557.

The spelling of 25702089 in words is "twenty-five million, seven hundred two thousand, eighty-nine".