6402554550 has 192 divisors, whose sum is σ = 20288701440. Its totient is φ = 1454319360.

The previous prime is 6402554539. The next prime is 6402554573. The reversal of 6402554550 is 554552046.

6402554550 is a `hidden beast` number, since 6 + 40 + 25 + 545 + 50 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1576122 + ... + 1580178.

It is an arithmetic number, because the mean of its divisors is an integer number (105670320).

Almost surely, 2^6402554550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6402554550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10144350720).

6402554550 is an abundant number, since it is smaller than the sum of its proper divisors (13886146890).

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

6402554550 is a wasteful number, since it uses less digits than its factorization.

6402554550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4252 (or 4241 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 36.

The square root of 6402554550 is about 80015.9643446231. The cubic root of 6402554550 is about 1856.8825249767.

The spelling of 6402554550 in words is "six billion, four hundred two million, five hundred fifty-four thousand, five hundred fifty".