25271064 has 288 divisors, whose sum is σ = 93366000. Its totient is φ = 6096384.

The previous prime is 25271033. The next prime is 25271069. The reversal of 25271064 is 46017252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25271069) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 871402 + ... + 871430.

Almost surely, 2^25271064 is an apocalyptic number.

25271064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25271064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46683000).

25271064 is an abundant number, since it is smaller than the sum of its proper divisors (68094936).

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

25271064 is a wasteful number, since it uses less digits than its factorization.

25271064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87 (or 73 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 25271064 is about 5027.0333199612. The cubic root of 25271064 is about 293.4547718027.

The spelling of 25271064 in words is "twenty-five million, two hundred seventy-one thousand, sixty-four".