55001996 has 48 divisors (see below), whose sum is σ = 113379840. Its totient is φ = 22861440.

The previous prime is 55001981. The next prime is 55002011. The reversal of 55001996 is 69910055.

It is an interprime number because it is at equal distance from previous prime (55001981) and next prime (55002011).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144935 + ... + 145313.

It is an arithmetic number, because the mean of its divisors is an integer number (2362080).

Almost surely, 2^55001996 is an apocalyptic number.

It is an amenable number.

55001996 is an abundant number, since it is smaller than the sum of its proper divisors (58377844).

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

55001996 is a wasteful number, since it uses less digits than its factorization.

55001996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534 (or 532 counting only the distinct ones).

The product of its (nonzero) digits is 12150, while the sum is 35.

The square root of 55001996 is about 7416.3330561673. Note that the first 3 decimals coincide. The cubic root of 55001996 is about 380.2998464406.

The spelling of 55001996 in words is "fifty-five million, one thousand, nine hundred ninety-six".