55280002531 has 8 divisors (see below), whose sum is σ = 59535391104. Its totient is φ = 51025054080.

The previous prime is 55280002513. The next prime is 55280002543. The reversal of 55280002531 is 13520008255.

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

It is not a de Polignac number, because 55280002531 - 2¹⁷ = 55279871459 is a prime.

It is a super-2 number, since 2×55280002531² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55280002493 and 55280002502.

It is not an unprimeable number, because it can be changed into a prime (55280002571) 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 7 ways as a sum of consecutive naturals, for example, 178971 + ... + 377611.

It is an arithmetic number, because the mean of its divisors is an integer number (7441923888).

Almost surely, 2^55280002531 is an apocalyptic number.

55280002531 is a deficient number, since it is larger than the sum of its proper divisors (4255388573).

55280002531 is a wasteful number, since it uses less digits than its factorization.

55280002531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220061.

The product of its (nonzero) digits is 12000, while the sum is 31.

The spelling of 55280002531 in words is "fifty-five billion, two hundred eighty million, two thousand, five hundred thirty-one".