55025455 has 4 divisors (see below), whose sum is σ = 66030552. Its totient is φ = 44020360.

The previous prime is 55025437. The next prime is 55025479. The reversal of 55025455 is 55452055.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55452055 = 5 ⋅11090411.

It is not a de Polignac number, because 55025455 - 2⁹ = 55024943 is a prime.

It is a super-3 number, since 3×55025455³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5502541 + ... + 5502550.

It is an arithmetic number, because the mean of its divisors is an integer number (16507638).

Almost surely, 2^55025455 is an apocalyptic number.

55025455 is a deficient number, since it is larger than the sum of its proper divisors (11005097).

55025455 is a wasteful number, since it uses less digits than its factorization.

55025455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11005096.

The product of its (nonzero) digits is 25000, while the sum is 31.

The square root of 55025455 is about 7417.9144643222. The cubic root of 55025455 is about 380.3539062122.

The spelling of 55025455 in words is "fifty-five million, twenty-five thousand, four hundred fifty-five".