55436130 has 32 divisors (see below), whose sum is σ = 147830400. Its totient is φ = 14782896.

The previous prime is 55436113. The next prime is 55436131. The reversal of 55436130 is 3163455.

55436130 is a `hidden beast` number, since 5 + 5 + 43 + 613 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 55436094 and 55436103.

It is not an unprimeable number, because it can be changed into a prime (55436131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102390 + ... + 102929.

It is an arithmetic number, because the mean of its divisors is an integer number (4619700).

Almost surely, 2^55436130 is an apocalyptic number.

55436130 is an abundant number, since it is smaller than the sum of its proper divisors (92394270).

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

55436130 is a wasteful number, since it uses less digits than its factorization.

55436130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205335 (or 205329 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 55436130 is about 7445.5443051533. The cubic root of 55436130 is about 381.2978017641.

Adding to 55436130 its reverse (3163455), we get a palindrome (58599585).

The spelling of 55436130 in words is "fifty-five million, four hundred thirty-six thousand, one hundred thirty".