55394955 has 96 divisors (see below), whose sum is σ = 124485120. Its totient is φ = 22705920.

The previous prime is 55394953. The next prime is 55395001. The reversal of 55394955 is 55949355.

55394955 is a `hidden beast` number, since 553 + 9 + 4 + 95 + 5 = 666.

It is not a de Polignac number, because 55394955 - 2¹ = 55394953 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 55394955.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55394953) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 758799 + ... + 758871.

It is an arithmetic number, because the mean of its divisors is an integer number (1296720).

Almost surely, 2^55394955 is an apocalyptic number.

55394955 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55394955 is an abundant number, since it is smaller than the sum of its proper divisors (69090165).

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

55394955 is a wasteful number, since it uses less digits than its factorization.

55394955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178 (or 99 counting only the distinct ones).

The product of its digits is 607500, while the sum is 45.

The square root of 55394955 is about 7442.7787149693. The cubic root of 55394955 is about 381.2033758267.

The spelling of 55394955 in words is "fifty-five million, three hundred ninety-four thousand, nine hundred fifty-five".