55380545 has 24 divisors (see below), whose sum is σ = 74433600. Its totient is φ = 39228800.

The previous prime is 55380529. The next prime is 55380551. The reversal of 55380545 is 54508355.

It is not a de Polignac number, because 55380545 - 2⁴ = 55380529 is a prime.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 92156 + ... + 92754.

It is an arithmetic number, because the mean of its divisors is an integer number (3101400).

Almost surely, 2^55380545 is an apocalyptic number.

55380545 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

55380545 is a deficient number, since it is larger than the sum of its proper divisors (19053055).

55380545 is a wasteful number, since it uses less digits than its factorization.

55380545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697 (or 656 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 35.

The square root of 55380545 is about 7441.8105995786. The cubic root of 55380545 is about 381.1703185622.

The spelling of 55380545 in words is "fifty-five million, three hundred eighty thousand, five hundred forty-five".