25625015406623 has 4 divisors (see below), whose sum is σ = 25933750532088. Its totient is φ = 25316280281160.

The previous prime is 25625015406607. The next prime is 25625015406629. The reversal of 25625015406623 is 32660451052652.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25625015406623 - 2⁴ = 25625015406607 is a prime.

It is a super-2 number, since 2×25625015406623² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25625015406629) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 154367562608 + ... + 154367562773.

It is an arithmetic number, because the mean of its divisors is an integer number (6483437633022).

Almost surely, 2^{25625015406623} is an apocalyptic number.

25625015406623 is a deficient number, since it is larger than the sum of its proper divisors (308735125465).

25625015406623 is an equidigital number, since it uses as much as digits as its factorization.

25625015406623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308735125464.

The product of its (nonzero) digits is 2592000, while the sum is 47.

The spelling of 25625015406623 in words is "twenty-five trillion, six hundred twenty-five billion, fifteen million, four hundred six thousand, six hundred twenty-three".