5555152421 has 8 divisors (see below), whose sum is σ = 6837110784. Its totient is φ = 4395285360.

The previous prime is 5555152363. The next prime is 5555152459. The reversal of 5555152421 is 1242515555.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5555152421 - 2¹⁸ = 5554890277 is a prime.

It is a super-2 number, since 2×5555152421² = 61719436841084322482, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5555172421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30522725 + ... + 30522906.

It is an arithmetic number, because the mean of its divisors is an integer number (854638848).

Almost surely, 2^5555152421 is an apocalyptic number.

It is an amenable number.

5555152421 is a deficient number, since it is larger than the sum of its proper divisors (1281958363).

5555152421 is a wasteful number, since it uses less digits than its factorization.

5555152421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61045651.

The product of its digits is 50000, while the sum is 35.

The square root of 5555152421 is about 74532.8948921213. The cubic root of 5555152421 is about 1771.0547748291.

Adding to 5555152421 its reverse (1242515555), we get a palindrome (6797667976).

The spelling of 5555152421 in words is "five billion, five hundred fifty-five million, one hundred fifty-two thousand, four hundred twenty-one".