12552420555 has 40 divisors (see below), whose sum is σ = 22522866432. Its totient is φ = 6688230912.

The previous prime is 12552420541. The next prime is 12552420557. The reversal of 12552420555 is 55502425521.

12552420555 is a `hidden beast` number, since 12 + 5 + 52 + 42 + 0 + 555 = 666.

It is not a de Polignac number, because 12552420555 - 2¹⁵ = 12552387787 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12552420557) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 425979 + ... + 454491.

Almost surely, 2^12552420555 is an apocalyptic number.

12552420555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12552420555 is a deficient number, since it is larger than the sum of its proper divisors (9970445877).

12552420555 is a wasteful number, since it uses less digits than its factorization.

12552420555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29617 (or 29608 counting only the distinct ones).

The product of its (nonzero) digits is 100000, while the sum is 36.

The spelling of 12552420555 in words is "twelve billion, five hundred fifty-two million, four hundred twenty thousand, five hundred fifty-five".