55670550 has 48 divisors (see below), whose sum is σ = 148688400. Its totient is φ = 13703040.

The previous prime is 55670543. The next prime is 55670561. The reversal of 55670550 is 5507655.

It is a Curzon number.

It is a congruent number.

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, 12325 + ... + 16224.

It is an arithmetic number, because the mean of its divisors is an integer number (3097675).

Almost surely, 2^55670550 is an apocalyptic number.

55670550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55670550 is an abundant number, since it is smaller than the sum of its proper divisors (93017850).

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

55670550 is a wasteful number, since it uses less digits than its factorization.

55670550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28577 (or 28572 counting only the distinct ones).

The product of its (nonzero) digits is 26250, while the sum is 33.

The square root of 55670550 is about 7461.2699991355. The cubic root of 55670550 is about 381.8345043012.

The spelling of 55670550 in words is "fifty-five million, six hundred seventy thousand, five hundred fifty".