74821225550 has 24 divisors (see below), whose sum is σ = 139274570232. Its totient is φ = 29905460000.

The previous prime is 74821225547. The next prime is 74821225573. The reversal of 74821225550 is 5552212847.

It is a junction number, because it is equal to n+sod(n) for n = 74821225498 and 74821225507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 510056 + ... + 640155.

It is an arithmetic number, because the mean of its divisors is an integer number (5803107093).

Almost surely, 2^74821225550 is an apocalyptic number.

74821225550 is a deficient number, since it is larger than the sum of its proper divisors (64453344682).

74821225550 is a wasteful number, since it uses less digits than its factorization.

74821225550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1151524 (or 1151519 counting only the distinct ones).

The product of its (nonzero) digits is 224000, while the sum is 41.

The spelling of 74821225550 in words is "seventy-four billion, eight hundred twenty-one million, two hundred twenty-five thousand, five hundred fifty".