97750484550 has 72 divisors (see below), whose sum is σ = 263451816576. Its totient is φ = 25984528320.

The previous prime is 97750484549. The next prime is 97750484561. The reversal of 97750484550 is 5548405779.

97750484550 is a `hidden beast` number, since 9 + 7 + 7 + 5 + 0 + 4 + 84 + 550 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 199974 + ... + 485273.

It is an arithmetic number, because the mean of its divisors is an integer number (3659053008).

Almost surely, 2^97750484550 is an apocalyptic number.

97750484550 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

97750484550 is an abundant number, since it is smaller than the sum of its proper divisors (165701332026).

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

97750484550 is a wasteful number, since it uses less digits than its factorization.

97750484550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685582 (or 685574 counting only the distinct ones).

The product of its (nonzero) digits is 7056000, while the sum is 54.

The spelling of 97750484550 in words is "ninety-seven billion, seven hundred fifty million, four hundred eighty-four thousand, five hundred fifty".