5155812072 has 48 divisors (see below), whose sum is σ = 13975241280. Its totient is φ = 1717178400.

The previous prime is 5155812061. The next prime is 5155812091. The reversal of 5155812072 is 2702185515.

5155812072 is a `hidden beast` number, since 5 + 1 + 5 + 581 + 2 + 0 + 72 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 59547 + ... + 117717.

It is an arithmetic number, because the mean of its divisors is an integer number (291150860).

Almost surely, 2^5155812072 is an apocalyptic number.

It is an amenable number.

5155812072 is an abundant number, since it is smaller than the sum of its proper divisors (8819429208).

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

5155812072 is a wasteful number, since it uses less digits than its factorization.

5155812072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59414 (or 59407 counting only the distinct ones).

The product of its (nonzero) digits is 28000, while the sum is 36.

The square root of 5155812072 is about 71803.9836777877. The cubic root of 5155812072 is about 1727.5568967391.

Adding to 5155812072 its reverse (2702185515), we get a palindrome (7857997587).

It can be divided in two parts, 515581 and 2072, that added together give a triangular number (517653 = T₁₀₁₇).

The spelling of 5155812072 in words is "five billion, one hundred fifty-five million, eight hundred twelve thousand, seventy-two".