5216991900 has 36 divisors (see below), whose sum is σ = 15094497432. Its totient is φ = 1391197760.

The previous prime is 5216991893. The next prime is 5216991907. The reversal of 5216991900 is 91996125.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (5216991893) and next prime (5216991907).

It is a super-2 number, since 2×5216991900² = 54434008969331220000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5216991907) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8694687 + ... + 8695286.

Almost surely, 2^5216991900 is an apocalyptic number.

5216991900 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

5216991900 is an abundant number, since it is smaller than the sum of its proper divisors (9877505532).

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

5216991900 is a wasteful number, since it uses less digits than its factorization.

5216991900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17389990 (or 17389983 counting only the distinct ones).

The product of its (nonzero) digits is 43740, while the sum is 42.

The square root of 5216991900 is about 72228.7470471418. The cubic root of 5216991900 is about 1734.3632164446.

The spelling of 5216991900 in words is "five billion, two hundred sixteen million, nine hundred ninety-one thousand, nine hundred".