5165223426 has 96 divisors (see below), whose sum is σ = 12406395456. Its totient is φ = 1540080000.

The previous prime is 5165223391. The next prime is 5165223461. The reversal of 5165223426 is 6243225615.

5165223426 is a `hidden beast` number, since 5 + 1 + 6 + 5 + 223 + 426 = 666.

It is an interprime number because it is at equal distance from previous prime (5165223391) and next prime (5165223461).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

Its product of digits (86400) is a multiple of the sum of its prime factors (1728).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3618925 + ... + 3620351.

It is an arithmetic number, because the mean of its divisors is an integer number (129233286).

Almost surely, 2^5165223426 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5165223426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6203197728).

5165223426 is an abundant number, since it is smaller than the sum of its proper divisors (7241172030).

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

5165223426 is a wasteful number, since it uses less digits than its factorization.

5165223426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1728 (or 1725 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The square root of 5165223426 is about 71869.4888391451. The cubic root of 5165223426 is about 1728.6074112863.

It can be divided in two parts, 51652 and 23426, that added together give a triangular number (75078 = T₃₈₇).

The spelling of 5165223426 in words is "five billion, one hundred sixty-five million, two hundred twenty-three thousand, four hundred twenty-six".