5215611492 has 768 divisors, whose sum is σ = 19508428800. Its totient is φ = 1164533760.

The previous prime is 5215611437. The next prime is 5215611493. The reversal of 5215611492 is 2941165125.

5215611492 is a `hidden beast` number, since 5 + 2 + 1 + 561 + 1 + 4 + 92 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (5215611493) by changing a digit.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 98407738 + ... + 98407790.

It is an arithmetic number, because the mean of its divisors is an integer number (25401600).

Almost surely, 2^5215611492 is an apocalyptic number.

5215611492 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5215611492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9754214400).

5215611492 is an abundant number, since it is smaller than the sum of its proper divisors (14292817308).

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

5215611492 is a wasteful number, since it uses less digits than its factorization.

5215611492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153 (or 145 counting only the distinct ones).

The product of its digits is 21600, while the sum is 36.

The square root of 5215611492 is about 72219.1906074833. The cubic root of 5215611492 is about 1734.2102330078.

The spelling of 5215611492 in words is "five billion, two hundred fifteen million, six hundred eleven thousand, four hundred ninety-two".