25062628021 has 4 divisors (see below), whose sum is σ = 25064012844. Its totient is φ = 25061243200.

The previous prime is 25062627937. The next prime is 25062628027. The reversal of 25062628021 is 12082626052.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3603600900 + 21459027121 = 60030^2 + 146489^2 .

It is a cyclic number.

It is not a de Polignac number, because 25062628021 - 2²⁷ = 24928410293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25062628027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 664900 + ... + 701581.

It is an arithmetic number, because the mean of its divisors is an integer number (6266003211).

Almost surely, 2^25062628021 is an apocalyptic number.

It is an amenable number.

25062628021 is a deficient number, since it is larger than the sum of its proper divisors (1384823).

25062628021 is a wasteful number, since it uses less digits than its factorization.

25062628021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1384822.

The product of its (nonzero) digits is 23040, while the sum is 34.

The spelling of 25062628021 in words is "twenty-five billion, sixty-two million, six hundred twenty-eight thousand, twenty-one".