55603470 has 32 divisors (see below), whose sum is σ = 143714592. Its totient is φ = 13686912.

The previous prime is 55603463. The next prime is 55603477. The reversal of 55603470 is 7430655.

It is an interprime number because it is at equal distance from previous prime (55603463) and next prime (55603477).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55603477) by changing a digit.

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, 70897 + ... + 71676.

It is an arithmetic number, because the mean of its divisors is an integer number (4491081).

Almost surely, 2^55603470 is an apocalyptic number.

55603470 is an abundant number, since it is smaller than the sum of its proper divisors (88111122).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55603470 is a wasteful number, since it uses less digits than its factorization.

55603470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142596.

The product of its (nonzero) digits is 12600, while the sum is 30.

The square root of 55603470 is about 7456.7734309150. The cubic root of 55603470 is about 381.6810793572.

The spelling of 55603470 in words is "fifty-five million, six hundred three thousand, four hundred seventy".