55016969 has 8 divisors (see below), whose sum is σ = 63942720. Its totient is φ = 46357776.

The previous prime is 55016963. The next prime is 55016993. The reversal of 55016969 is 96961055.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55016969 is a prime.

It is a super-2 number, since 2×55016969² = 6053733755893922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55016963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66194 + ... + 67019.

It is an arithmetic number, because the mean of its divisors is an integer number (7992840).

Almost surely, 2^55016969 is an apocalyptic number.

55016969 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

It is an amenable number.

55016969 is a deficient number, since it is larger than the sum of its proper divisors (8925751).

55016969 is a wasteful number, since it uses less digits than its factorization.

55016969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133279.

The product of its (nonzero) digits is 72900, while the sum is 41.

The square root of 55016969 is about 7417.3424486132. The cubic root of 55016969 is about 380.3343525396.

The spelling of 55016969 in words is "fifty-five million, sixteen thousand, nine hundred sixty-nine".