25432040250505 has 16 divisors (see below), whose sum is σ = 34893776548224. Its totient is φ = 17431338355200.

The previous prime is 25432040250493. The next prime is 25432040250517. The reversal of 25432040250505 is 50505204023452.

It is an interprime number because it is at equal distance from previous prime (25432040250493) and next prime (25432040250517).

It is not a de Polignac number, because 25432040250505 - 2⁵ = 25432040250473 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161898696 + ... + 162055705.

It is an arithmetic number, because the mean of its divisors is an integer number (2180861034264).

Almost surely, 2^{25432040250505} is an apocalyptic number.

It is an amenable number.

25432040250505 is a deficient number, since it is larger than the sum of its proper divisors (9461736297719).

25432040250505 is a wasteful number, since it uses less digits than its factorization.

25432040250505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323956656.

The product of its (nonzero) digits is 240000, while the sum is 37.

Adding to 25432040250505 its reverse (50505204023452), we get a palindrome (75937244273957).

The spelling of 25432040250505 in words is "twenty-five trillion, four hundred thirty-two billion, forty million, two hundred fifty thousand, five hundred five".