55130535 has 12 divisors (see below), whose sum is σ = 95559672. Its totient is φ = 29402928.

The previous prime is 55130531. The next prime is 55130539. The reversal of 55130535 is 53503155.

It is an interprime number because it is at equal distance from previous prime (55130531) and next prime (55130539).

It is not a de Polignac number, because 55130535 - 2² = 55130531 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 55130499 and 55130508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55130531) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 612517 + ... + 612606.

It is an arithmetic number, because the mean of its divisors is an integer number (7963306).

Almost surely, 2^55130535 is an apocalyptic number.

55130535 is a deficient number, since it is larger than the sum of its proper divisors (40429137).

55130535 is a wasteful number, since it uses less digits than its factorization.

55130535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1225134 (or 1225131 counting only the distinct ones).

The product of its (nonzero) digits is 5625, while the sum is 27.

The square root of 55130535 is about 7424.9939393915. The cubic root of 55130535 is about 380.5958680091.

The spelling of 55130535 in words is "fifty-five million, one hundred thirty thousand, five hundred thirty-five".