55015130 has 16 divisors (see below), whose sum is σ = 99809280. Its totient is φ = 21832272.

The previous prime is 55015123. The next prime is 55015133. The reversal of 55015130 is 3151055.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (55015133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20390 + ... + 22929.

It is an arithmetic number, because the mean of its divisors is an integer number (6238080).

Almost surely, 2^55015130 is an apocalyptic number.

55015130 is a deficient number, since it is larger than the sum of its proper divisors (44794150).

55015130 is a wasteful number, since it uses less digits than its factorization.

55015130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43453.

The product of its (nonzero) digits is 375, while the sum is 20.

The square root of 55015130 is about 7417.2184813446. The cubic root of 55015130 is about 380.3301148006.

Adding to 55015130 its reverse (3151055), we get a palindrome (58166185).

The spelling of 55015130 in words is "fifty-five million, fifteen thousand, one hundred thirty".