25263351385 has 8 divisors (see below), whose sum is σ = 30365480520. Its totient is φ = 20177708544.

The previous prime is 25263351359. The next prime is 25263351391. The reversal of 25263351385 is 58315336252.

It can be written as a sum of positive squares in 4 ways, for example, as 1158925849 + 24104425536 = 34043^2 + 155256^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25263351385 - 2¹⁷ = 25263220313 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4118200 + ... + 4124329.

It is an arithmetic number, because the mean of its divisors is an integer number (3795685065).

Almost surely, 2^25263351385 is an apocalyptic number.

It is an amenable number.

25263351385 is a deficient number, since it is larger than the sum of its proper divisors (5102129135).

25263351385 is an equidigital number, since it uses as much as digits as its factorization.

25263351385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8243147.

The product of its digits is 648000, while the sum is 43.

The spelling of 25263351385 in words is "twenty-five billion, two hundred sixty-three million, three hundred fifty-one thousand, three hundred eighty-five".