55100930 has 8 divisors (see below), whose sum is σ = 99181692. Its totient is φ = 22040368.

The previous prime is 55100923. The next prime is 55100933. The reversal of 55100930 is 3900155.

It is a Cunningham number, because it is equal to 7423²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 55100929 + 1 = 7423^2 + 1^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×55100930² = 6072224973729800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55100896 and 55100905.

It is not an unprimeable number, because it can be changed into a prime (55100933) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2755037 + ... + 2755056.

Almost surely, 2^55100930 is an apocalyptic number.

55100930 is a deficient number, since it is larger than the sum of its proper divisors (44080762).

55100930 is a wasteful number, since it uses less digits than its factorization.

55100930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5510100.

The product of its (nonzero) digits is 675, while the sum is 23.

The square root of 55100930 is about 7423.0000673582. Note that the first 4 decimals coincide. The cubic root of 55100930 is about 380.5277293744.

The spelling of 55100930 in words is "fifty-five million, one hundred thousand, nine hundred thirty".