55425545 has 16 divisors (see below), whose sum is σ = 77448960. Its totient is φ = 37287744.

The previous prime is 55425541. The next prime is 55425599. The reversal of 55425545 is 54552455.

55425545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 55425545 - 2² = 55425541 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is not an unprimeable number, because it can be changed into a prime (55425541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13085 + ... + 16794.

It is an arithmetic number, because the mean of its divisors is an integer number (4840560).

Almost surely, 2^55425545 is an apocalyptic number.

It is an amenable number.

55425545 is a deficient number, since it is larger than the sum of its proper divisors (22023415).

55425545 is a wasteful number, since it uses less digits than its factorization.

55425545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29944.

The product of its digits is 100000, while the sum is 35.

The square root of 55425545 is about 7444.8334434022. The cubic root of 55425545 is about 381.2735318271.

The spelling of 55425545 in words is "fifty-five million, four hundred twenty-five thousand, five hundred forty-five".