264000139025 has 12 divisors (see below), whose sum is σ = 374125911552. Its totient is φ = 181028666640.

The previous prime is 264000139009. The next prime is 264000139043. The reversal of 264000139025 is 520931000462.

It is a happy number.

It is not a de Polignac number, because 264000139025 - 2⁴ = 264000139009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 264000138982 and 264000139000.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 754285937 + ... + 754286286.

It is an arithmetic number, because the mean of its divisors is an integer number (31177159296).

Almost surely, 2^264000139025 is an apocalyptic number.

264000139025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

264000139025 is a deficient number, since it is larger than the sum of its proper divisors (110125772527).

264000139025 is a wasteful number, since it uses less digits than its factorization.

264000139025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1508572240 (or 1508572235 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

Adding to 264000139025 its reverse (520931000462), we get a palindrome (784931139487).

The spelling of 264000139025 in words is "two hundred sixty-four billion, one hundred thirty-nine thousand, twenty-five".