55101663 has 24 divisors (see below), whose sum is σ = 84180096. Its totient is φ = 34675200.

The previous prime is 55101659. The next prime is 55101677. The reversal of 55101663 is 36610155.

It is a happy number.

It is not a de Polignac number, because 55101663 - 2² = 55101659 is a prime.

It is a super-3 number, since 3×55101663³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55105663) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9031 + ... + 13847.

It is an arithmetic number, because the mean of its divisors is an integer number (3507504).

Almost surely, 2^55101663 is an apocalyptic number.

55101663 is a deficient number, since it is larger than the sum of its proper divisors (29078433).

55101663 is a wasteful number, since it uses less digits than its factorization.

55101663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4895 (or 4892 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 55101663 is about 7423.0494407622. The cubic root of 55101663 is about 380.5294167360.

The spelling of 55101663 in words is "fifty-five million, one hundred one thousand, six hundred sixty-three".