26401512325 has 24 divisors (see below), whose sum is σ = 33551993160. Its totient is φ = 20596454400.

The previous prime is 26401512317. The next prime is 26401512373. The reversal of 26401512325 is 52321510462.

It can be written as a sum of positive squares in 12 ways, for example, as 15793954276 + 10607558049 = 125674^2 + 102993^2 .

It is not a de Polignac number, because 26401512325 - 2³ = 26401512317 is a prime.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 2862321 + ... + 2871529.

It is an arithmetic number, because the mean of its divisors is an integer number (1397999715).

Almost surely, 2^26401512325 is an apocalyptic number.

26401512325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

26401512325 is a deficient number, since it is larger than the sum of its proper divisors (7150480835).

26401512325 is a wasteful number, since it uses less digits than its factorization.

26401512325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12057 (or 12052 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The spelling of 26401512325 in words is "twenty-six billion, four hundred one million, five hundred twelve thousand, three hundred twenty-five".