555561672825 has 24 divisors (see below), whose sum is σ = 920177765568. Its totient is φ = 295767580480.

The previous prime is 555561672793. The next prime is 555561672871. The reversal of 555561672825 is 528276165555.

It is a happy number.

It is not a de Polignac number, because 555561672825 - 2⁵ = 555561672793 is a prime.

It is a super-2 number, since 2×555561672825² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6607677 + ... + 6691226.

It is an arithmetic number, because the mean of its divisors is an integer number (38340740232).

Almost surely, 2^555561672825 is an apocalyptic number.

It is an amenable number.

555561672825 is a deficient number, since it is larger than the sum of its proper divisors (364616092743).

555561672825 is a wasteful number, since it uses less digits than its factorization.

555561672825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13299473 (or 13299468 counting only the distinct ones).

The product of its digits is 25200000, while the sum is 57.

The spelling of 555561672825 in words is "five hundred fifty-five billion, five hundred sixty-one million, six hundred seventy-two thousand, eight hundred twenty-five".