25897002 has 16 divisors (see below), whose sum is σ = 51853440. Its totient is φ = 8622432.

The previous prime is 25896991. The next prime is 25897009. The reversal of 25897002 is 20079852.

It is a plaindrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (25897009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4863 + ... + 8685.

It is an arithmetic number, because the mean of its divisors is an integer number (3240840).

Almost surely, 2^25897002 is an apocalyptic number.

25897002 is an abundant number, since it is smaller than the sum of its proper divisors (25956438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25897002 is a wasteful number, since it uses less digits than its factorization.

25897002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4957.

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

The square root of 25897002 is about 5088.9097064106. The cubic root of 25897002 is about 295.8578953267.

It can be divided in two parts, 2589 and 7002, that added together give a triangular number (9591 = T₁₃₈).

The spelling of 25897002 in words is "twenty-five million, eight hundred ninety-seven thousand, two".