27752780255550 has 48 divisors (see below), whose sum is σ = 78659308612992. Its totient is φ = 6343492629600.

The previous prime is 27752780255527. The next prime is 27752780255573. The reversal of 27752780255550 is 5555208725772.

It is an interprime number because it is at equal distance from previous prime (27752780255527) and next prime (27752780255573).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13215608596 + ... + 13215610695.

It is an arithmetic number, because the mean of its divisors is an integer number (1638735596104).

Almost surely, 2^{27752780255550} is an apocalyptic number.

27752780255550 is an abundant number, since it is smaller than the sum of its proper divisors (50906528357442).

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

27752780255550 is a wasteful number, since it uses less digits than its factorization.

27752780255550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26431219313 (or 26431219308 counting only the distinct ones).

The product of its (nonzero) digits is 68600000, while the sum is 60.

The spelling of 27752780255550 in words is "twenty-seven trillion, seven hundred fifty-two billion, seven hundred eighty million, two hundred fifty-five thousand, five hundred fifty".