55321765567480 has 32 divisors (see below), whose sum is σ = 124475033350800. Its totient is φ = 22128517636096.

The previous prime is 55321765567459. The next prime is 55321765567501. The reversal of 55321765567480 is 8476556712355.

It is an interprime number because it is at equal distance from previous prime (55321765567459) and next prime (55321765567501).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1093042 + ... + 10575361.

Almost surely, 2^{55321765567480} is an apocalyptic number.

It is an amenable number.

55321765567480 is an abundant number, since it is smaller than the sum of its proper divisors (69153267783320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55321765567480 is a wasteful number, since it uses less digits than its factorization.

55321765567480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11786943 (or 11786939 counting only the distinct ones).

The product of its (nonzero) digits is 211680000, while the sum is 64.

The spelling of 55321765567480 in words is "fifty-five trillion, three hundred twenty-one billion, seven hundred sixty-five million, five hundred sixty-seven thousand, four hundred eighty".