55345455 has 48 divisors (see below), whose sum is σ = 110826144. Its totient is φ = 25251840.

The previous prime is 55345453. The next prime is 55345487. The reversal of 55345455 is 55454355.

55345455 is a `hidden beast` number, since 553 + 4 + 54 + 55 = 666.

It is not a de Polignac number, because 55345455 - 2¹ = 55345453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55345453) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5127 + ... + 11703.

It is an arithmetic number, because the mean of its divisors is an integer number (2308878).

Almost surely, 2^55345455 is an apocalyptic number.

55345455 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55345455 is an abundant number, since it is smaller than the sum of its proper divisors (55480689).

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

55345455 is a wasteful number, since it uses less digits than its factorization.

55345455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6616 (or 6613 counting only the distinct ones).

The product of its digits is 150000, while the sum is 36.

The square root of 55345455 is about 7439.4526008303. The cubic root of 55345455 is about 381.0897963476.

Subtracting 55345455 from its reverse (55454355), we obtain a square (108900 = 330²).

The spelling of 55345455 in words is "fifty-five million, three hundred forty-five thousand, four hundred fifty-five".