5171661550 has 96 divisors (see below), whose sum is σ = 11004367104. Its totient is φ = 1789920000.

The previous prime is 5171661529. The next prime is 5171661559. The reversal of 5171661550 is 551661715.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5171661559) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2870650 + ... + 2872450.

It is an arithmetic number, because the mean of its divisors is an integer number (114628824).

Almost surely, 2^5171661550 is an apocalyptic number.

5171661550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

5171661550 is an abundant number, since it is smaller than the sum of its proper divisors (5832705554).

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

5171661550 is a wasteful number, since it uses less digits than its factorization.

5171661550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2074 (or 2069 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 37.

The square root of 5171661550 is about 71914.2652747005. The cubic root of 5171661550 is about 1729.3253129970.

The spelling of 5171661550 in words is "five billion, one hundred seventy-one million, six hundred sixty-one thousand, five hundred fifty".