55079145 has 24 divisors (see below), whose sum is σ = 104150592. Its totient is φ = 26704800.

The previous prime is 55079131. The next prime is 55079153. The reversal of 55079145 is 54197055.

55079145 is a `hidden beast` number, since 5 + 507 + 9 + 145 = 666.

It is not a de Polignac number, because 55079145 - 2¹⁸ = 54817001 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55141 + ... + 56130.

It is an arithmetic number, because the mean of its divisors is an integer number (4339608).

Almost surely, 2^55079145 is an apocalyptic number.

55079145 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

55079145 is a deficient number, since it is larger than the sum of its proper divisors (49071447).

55079145 is a wasteful number, since it uses less digits than its factorization.

55079145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111293 (or 111290 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 36.

The square root of 55079145 is about 7421.5325236773. The cubic root of 55079145 is about 380.4775736007.

The spelling of 55079145 in words is "fifty-five million, seventy-nine thousand, one hundred forty-five".