55378003 has 8 divisors (see below), whose sum is σ = 57148560. Its totient is φ = 53627520.

The previous prime is 55377977. The next prime is 55378007. The reversal of 55378003 is 30087355.

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

It is a cyclic number.

It is not a de Polignac number, because 55378003 - 2¹⁷ = 55246931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55378007) 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, 688 + ... + 10546.

It is an arithmetic number, because the mean of its divisors is an integer number (7143570).

Almost surely, 2^55378003 is an apocalyptic number.

55378003 is a deficient number, since it is larger than the sum of its proper divisors (1770557).

55378003 is a wasteful number, since it uses less digits than its factorization.

55378003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10037.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 55378003 is about 7441.6398058492. The cubic root of 55378003 is about 381.1644864915.

The spelling of 55378003 in words is "fifty-five million, three hundred seventy-eight thousand, three".