55251955 has 16 divisors (see below), whose sum is σ = 76585824. Its totient is φ = 37818880.

The previous prime is 55251941. The next prime is 55251967. The reversal of 55251955 is 55915255.

It is not a de Polignac number, because 55251955 - 2¹³ = 55243763 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28612 + ... + 30481.

It is an arithmetic number, because the mean of its divisors is an integer number (4786614).

Almost surely, 2^55251955 is an apocalyptic number.

55251955 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55251955 is a deficient number, since it is larger than the sum of its proper divisors (21333869).

55251955 is a wasteful number, since it uses less digits than its factorization.

55251955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59126.

The product of its digits is 56250, while the sum is 37.

The square root of 55251955 is about 7433.1658800272. The cubic root of 55251955 is about 380.8750724213.

The spelling of 55251955 in words is "fifty-five million, two hundred fifty-one thousand, nine hundred fifty-five".