55115204100 has 72 divisors (see below), whose sum is σ = 173963636448. Its totient is φ = 13361260800.

The previous prime is 55115203987. The next prime is 55115204117. The reversal of 55115204100 is 140251155.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8347489 + ... + 8354088.

Almost surely, 2^55115204100 is an apocalyptic number.

55115204100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55115204100 is an abundant number, since it is smaller than the sum of its proper divisors (118848432348).

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

55115204100 is a wasteful number, since it uses less digits than its factorization.

55115204100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16701605 (or 16701598 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 24.

Adding to 55115204100 its reverse (140251155), we get a palindrome (55255455255).

The spelling of 55115204100 in words is "fifty-five billion, one hundred fifteen million, two hundred four thousand, one hundred".