55146550 has 24 divisors (see below), whose sum is σ = 107973000. Its totient is φ = 20897280.

The previous prime is 55146547. The next prime is 55146577. The reversal of 55146550 is 5564155.

55146550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×55146550² = 6082283953805000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28075 + ... + 29974.

It is an arithmetic number, because the mean of its divisors is an integer number (4498875).

Almost surely, 2^55146550 is an apocalyptic number.

55146550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55146550 is a deficient number, since it is larger than the sum of its proper divisors (52826450).

55146550 is a wasteful number, since it uses less digits than its factorization.

55146550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58080 (or 58075 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 31.

The square root of 55146550 is about 7426.0723131410. The cubic root of 55146550 is about 380.6327178402.

It can be divided in two parts, 55146 and 550, that added together give a square (55696 = 236²).

The spelling of 55146550 in words is "fifty-five million, one hundred forty-six thousand, five hundred fifty".