25025146 has 16 divisors (see below), whose sum is σ = 38304000. Its totient is φ = 12259728.

The previous prime is 25025141. The next prime is 25025149. The reversal of 25025146 is 64152052.

It is a self number, because there is not a number n which added to its sum of digits gives 25025146.

It is not an unprimeable number, because it can be changed into a prime (25025141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23011 + ... + 24073.

It is an arithmetic number, because the mean of its divisors is an integer number (2394000).

Almost surely, 2^25025146 is an apocalyptic number.

25025146 is a deficient number, since it is larger than the sum of its proper divisors (13278854).

25025146 is a wasteful number, since it uses less digits than its factorization.

25025146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1293.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 25025146 is about 5002.5139679965. The cubic root of 25025146 is about 292.4997774367.

Adding to 25025146 its reverse (64152052), we get a palindrome (89177198).

The spelling of 25025146 in words is "twenty-five million, twenty-five thousand, one hundred forty-six".