55994965 has 16 divisors (see below), whose sum is σ = 72536688. Its totient is φ = 41250816.

The previous prime is 55994951. The next prime is 55994993. The reversal of 55994965 is 56949955.

It can be written as a sum of positive squares in 8 ways, for example, as 4743684 + 51251281 = 2178^2 + 7159^2 .

It is a cyclic number.

It is not a de Polignac number, because 55994965 - 2⁹ = 55994453 is a prime.

It is a super-2 number, since 2×55994965² = 6270872210702450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

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, 36759 + ... + 38251.

It is an arithmetic number, because the mean of its divisors is an integer number (4533543).

Almost surely, 2^55994965 is an apocalyptic number.

It is an amenable number.

55994965 is a deficient number, since it is larger than the sum of its proper divisors (16541723).

55994965 is a wasteful number, since it uses less digits than its factorization.

55994965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2088.

The product of its digits is 2187000, while the sum is 52.

The square root of 55994965 is about 7482.9783508975. The cubic root of 55994965 is about 382.5747700102.

The spelling of 55994965 in words is "fifty-five million, nine hundred ninety-four thousand, nine hundred sixty-five".