25139001395 has 8 divisors (see below), whose sum is σ = 30167667600. Its totient is φ = 20110623840.

The previous prime is 25139001389. The next prime is 25139001487. The reversal of 25139001395 is 59310093152.

It is a happy number.

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

It is not a de Polignac number, because 25139001395 - 2¹⁰ = 25139000371 is a prime.

It is a super-2 number, since 2×25139001395² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 251081 + ... + 336629.

It is an arithmetic number, because the mean of its divisors is an integer number (3770958450).

Almost surely, 2^25139001395 is an apocalyptic number.

25139001395 is a deficient number, since it is larger than the sum of its proper divisors (5028666205).

25139001395 is an equidigital number, since it uses as much as digits as its factorization.

25139001395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144325.

The product of its (nonzero) digits is 36450, while the sum is 38.

The spelling of 25139001395 in words is "twenty-five billion, one hundred thirty-nine million, one thousand, three hundred ninety-five".