55312733480 has 32 divisors (see below), whose sum is σ = 124526120040. Its totient is φ = 22112209920.

The previous prime is 55312733467. The next prime is 55312733507. The reversal of 55312733480 is 8433721355.

It can be written as a sum of positive squares in 4 ways, for example, as 47954868196 + 7357865284 = 218986^2 + 85778^2 .

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, 332909 + ... + 470588.

Almost surely, 2^55312733480 is an apocalyptic number.

It is an amenable number.

55312733480 is an abundant number, since it is smaller than the sum of its proper divisors (69213386560).

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

55312733480 is a wasteful number, since it uses less digits than its factorization.

55312733480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 805229 (or 805225 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 41.

The spelling of 55312733480 in words is "fifty-five billion, three hundred twelve million, seven hundred thirty-three thousand, four hundred eighty".