25487064 has 48 divisors (see below), whose sum is σ = 70340400. Its totient is φ = 8334144.

The previous prime is 25487057. The next prime is 25487071. The reversal of 25487064 is 46078452.

It is an interprime number because it is at equal distance from previous prime (25487057) and next prime (25487071).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 477 + ... + 7155.

It is an arithmetic number, because the mean of its divisors is an integer number (1465425).

Almost surely, 2^25487064 is an apocalyptic number.

25487064 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 25487064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35170200).

25487064 is an abundant number, since it is smaller than the sum of its proper divisors (44853336).

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

25487064 is a wasteful number, since it uses less digits than its factorization.

25487064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6744 (or 6737 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 25487064 is about 5048.4714518357. The cubic root of 25487064 is about 294.2884854018.

The spelling of 25487064 in words is "twenty-five million, four hundred eighty-seven thousand, sixty-four".