55477455 has 16 divisors (see below), whose sum is σ = 96833664. Its totient is φ = 26898080.

The previous prime is 55477453. The next prime is 55477459.

It is a happy number.

55477455 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 55477455 - 2¹ = 55477453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55477453) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167949 + ... + 168278.

It is an arithmetic number, because the mean of its divisors is an integer number (6052104).

Almost surely, 2^55477455 is an apocalyptic number.

55477455 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55477455 is a deficient number, since it is larger than the sum of its proper divisors (41356209).

55477455 is a wasteful number, since it uses less digits than its factorization.

55477455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336246.

The product of its digits is 490000, while the sum is 42.

The square root of 55477455 is about 7448.3189378544. The cubic root of 55477455 is about 381.3925246934.

The spelling of 55477455 in words is "fifty-five million, four hundred seventy-seven thousand, four hundred fifty-five".