55350550 has 24 divisors (see below), whose sum is σ = 104899536. Its totient is φ = 21721440.

The previous prime is 55350541. The next prime is 55350551. The reversal of 55350550 is 5505355.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55350551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7794 + ... + 13093.

It is an arithmetic number, because the mean of its divisors is an integer number (4370814).

Almost surely, 2^55350550 is an apocalyptic number.

55350550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55350550 is a deficient number, since it is larger than the sum of its proper divisors (49548986).

55350550 is a wasteful number, since it uses less digits than its factorization.

55350550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20952 (or 20947 counting only the distinct ones).

The product of its (nonzero) digits is 9375, while the sum is 28.

The square root of 55350550 is about 7439.7950240581. The cubic root of 55350550 is about 381.1014901288.

The spelling of 55350550 in words is "fifty-five million, three hundred fifty thousand, five hundred fifty".