5155111100 has 18 divisors (see below), whose sum is σ = 11186591304. Its totient is φ = 2062044400.

The previous prime is 5155111067. The next prime is 5155111121. The reversal of 5155111100 is 11115515.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25775456 + ... + 25775655.

Almost surely, 2^5155111100 is an apocalyptic number.

5155111100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

5155111100 is an abundant number, since it is smaller than the sum of its proper divisors (6031480204).

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

5155111100 is a wasteful number, since it uses less digits than its factorization.

5155111100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51551125 (or 51551118 counting only the distinct ones).

The product of its (nonzero) digits is 125, while the sum is 20.

The square root of 5155111100 is about 71799.1023620769. The cubic root of 5155111100 is about 1727.4786016758.

Adding to 5155111100 its reverse (11115515), we get a palindrome (5166226615).

The spelling of 5155111100 in words is "five billion, one hundred fifty-five million, one hundred eleven thousand, one hundred".