55130860 has 24 divisors (see below), whose sum is σ = 115920000. Its totient is φ = 22024704.

The previous prime is 55130857. The next prime is 55130863. The reversal of 55130860 is 6803155.

55130860 = T₆₀₆₁ + T₆₀₆₂ + T₆₀₆₃.

It is an interprime number because it is at equal distance from previous prime (55130857) and next prime (55130863).

It is not an unprimeable number, because it can be changed into a prime (55130863) 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, 23877 + ... + 26083.

It is an arithmetic number, because the mean of its divisors is an integer number (4830000).

Almost surely, 2^55130860 is an apocalyptic number.

55130860 is the 6063-rd centered triangular number.

It is an amenable number.

55130860 is an abundant number, since it is smaller than the sum of its proper divisors (60789140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55130860 is a wasteful number, since it uses less digits than its factorization.

55130860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3465 (or 3463 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 55130860 is about 7425.0158248990. The cubic root of 55130860 is about 380.5966158911.

It can be divided in two parts, 551308 and 60, that added together give a cube (551368 = 82³).

The spelling of 55130860 in words is "fifty-five million, one hundred thirty thousand, eight hundred sixty".