5551890283531 has 2 divisors, whose sum is σ = 5551890283532. Its totient is φ = 5551890283530.

The previous prime is 5551890283183. The next prime is 5551890283859. The reversal of 5551890283531 is 1353820981555.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5551890283531 - 2³³ = 5543300348939 is a prime.

It is a super-2 number, since 2×5551890283531² (a number of 26 digits) contains 22 as substring.

It is a lonely number, since its distance to closest prime (5551890283859) sets a new record.

It is not a weakly prime, because it can be changed into another prime (5551890293531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2775945141765 + 2775945141766.

It is an arithmetic number, because the mean of its divisors is an integer number (2775945141766).

Almost surely, 2^{5551890283531} is an apocalyptic number.

5551890283531 is a deficient number, since it is larger than the sum of its proper divisors (1).

5551890283531 is an equidigital number, since it uses as much as digits as its factorization.

5551890283531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480000, while the sum is 55.

The spelling of 5551890283531 in words is "five trillion, five hundred fifty-one billion, eight hundred ninety million, two hundred eighty-three thousand, five hundred thirty-one".