25640076 has 48 divisors (see below), whose sum is σ = 74592000. Its totient is φ = 6659520.

The previous prime is 25640071. The next prime is 25640081. The reversal of 25640076 is 67004652.

It is an interprime number because it is at equal distance from previous prime (25640071) and next prime (25640081).

It is not an unprimeable number, because it can be changed into a prime (25640071) 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, 12951 + ... + 14798.

It is an arithmetic number, because the mean of its divisors is an integer number (1554000).

Almost surely, 2^25640076 is an apocalyptic number.

It is an amenable number.

25640076 is an abundant number, since it is smaller than the sum of its proper divisors (48951924).

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

25640076 is a wasteful number, since it uses less digits than its factorization.

25640076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27774 (or 27772 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 25640076 is about 5063.6030650121. The cubic root of 25640076 is about 294.8762326732.

The spelling of 25640076 in words is "twenty-five million, six hundred forty thousand, seventy-six".