55361955 has 16 divisors (see below), whose sum is σ = 96632064. Its totient is φ = 26842080.

The previous prime is 55361909. The next prime is 55361983. The reversal of 55361955 is 55916355.

It is not a de Polignac number, because 55361955 - 2¹² = 55357859 is a prime.

It is a super-2 number, since 2×55361955² = 6129892122844050, which contains 22 as substring.

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, 167599 + ... + 167928.

It is an arithmetic number, because the mean of its divisors is an integer number (6039504).

Almost surely, 2^55361955 is an apocalyptic number.

55361955 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55361955 is a deficient number, since it is larger than the sum of its proper divisors (41270109).

55361955 is a wasteful number, since it uses less digits than its factorization.

55361955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335546.

The product of its digits is 101250, while the sum is 39.

The square root of 55361955 is about 7440.5614707494. The cubic root of 55361955 is about 381.1276636959.

The spelling of 55361955 in words is "fifty-five million, three hundred sixty-one thousand, nine hundred fifty-five".