25378575 has 24 divisors (see below), whose sum is σ = 42104448. Its totient is φ = 13488480.

The previous prime is 25378571. The next prime is 25378583. The reversal of 25378575 is 57587352.

25378575 = T₁₁ + T₁₂ + ... + T₅₃₃.

It is not a de Polignac number, because 25378575 - 2² = 25378571 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25378571) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38902 + ... + 39548.

It is an arithmetic number, because the mean of its divisors is an integer number (1754352).

Almost surely, 2^25378575 is an apocalyptic number.

25378575 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25378575 is a deficient number, since it is larger than the sum of its proper divisors (16725873).

25378575 is a wasteful number, since it uses less digits than its factorization.

25378575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1183 (or 1178 counting only the distinct ones).

The product of its digits is 294000, while the sum is 42.

The square root of 25378575 is about 5037.7152559469. The cubic root of 25378575 is about 293.8703324715.

The spelling of 25378575 in words is "twenty-five million, three hundred seventy-eight thousand, five hundred seventy-five".