55746645 has 16 divisors (see below), whose sum is σ = 89839680. Its totient is φ = 29516544.

The previous prime is 55746631. The next prime is 55746659. The reversal of 55746645 is 54664755.

It is an interprime number because it is at equal distance from previous prime (55746631) and next prime (55746659).

It is not a de Polignac number, because 55746645 - 2⁸ = 55746389 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55746597 and 55746606.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11284 + ... + 15453.

It is an arithmetic number, because the mean of its divisors is an integer number (5614980).

Almost surely, 2^55746645 is an apocalyptic number.

It is an amenable number.

55746645 is a deficient number, since it is larger than the sum of its proper divisors (34093035).

55746645 is a wasteful number, since it uses less digits than its factorization.

55746645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26884.

The product of its digits is 504000, while the sum is 42.

The square root of 55746645 is about 7466.3675907365. The cubic root of 55746645 is about 382.0083991648.

The spelling of 55746645 in words is "fifty-five million, seven hundred forty-six thousand, six hundred forty-five".