5155421504 has 14 divisors (see below), whose sum is σ = 10230289674. Its totient is φ = 2577710720.

The previous prime is 5155421497. The next prime is 5155421507. The reversal of 5155421504 is 4051245515.

It can be written as a sum of positive squares in only one way, i.e., 4542760000 + 612661504 = 67400^2 + 24752^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5155421507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40276667 + ... + 40276794.

Almost surely, 2^5155421504 is an apocalyptic number.

It is an amenable number.

5155421504 is a deficient number, since it is larger than the sum of its proper divisors (5074868170).

5155421504 is an equidigital number, since it uses as much as digits as its factorization.

5155421504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80553473 (or 80553463 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 32.

The square root of 5155421504 is about 71801.2639443067. The cubic root of 5155421504 is about 1727.5132731242.

The spelling of 5155421504 in words is "five billion, one hundred fifty-five million, four hundred twenty-one thousand, five hundred four".