25425152402505 has 32 divisors (see below), whose sum is σ = 41546293659648. Its totient is φ = 13271405131200.

The previous prime is 25425152402491. The next prime is 25425152402509. The reversal of 25425152402505 is 50520425152452.

It is not a de Polignac number, because 25425152402505 - 2¹¹ = 25425152400457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25425152402509) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 74935090 + ... + 75273620.

It is an arithmetic number, because the mean of its divisors is an integer number (1298321676864).

Almost surely, 2^{25425152402505} is an apocalyptic number.

It is an amenable number.

25425152402505 is a deficient number, since it is larger than the sum of its proper divisors (16121141257143).

25425152402505 is a wasteful number, since it uses less digits than its factorization.

25425152402505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445117.

The product of its (nonzero) digits is 800000, while the sum is 42.

Adding to 25425152402505 its reverse (50520425152452), we get a palindrome (75945577554957).

The spelling of 25425152402505 in words is "twenty-five trillion, four hundred twenty-five billion, one hundred fifty-two million, four hundred two thousand, five hundred five".