55134570 has 32 divisors (see below), whose sum is σ = 140107968. Its totient is φ = 13837568.

The previous prime is 55134559. The next prime is 55134571. The reversal of 55134570 is 7543155.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (55134571) 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, 53544 + ... + 54563.

It is an arithmetic number, because the mean of its divisors is an integer number (4378374).

Almost surely, 2^55134570 is an apocalyptic number.

55134570 is an abundant number, since it is smaller than the sum of its proper divisors (84973398).

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

55134570 is a wasteful number, since it uses less digits than its factorization.

55134570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108134.

The product of its (nonzero) digits is 10500, while the sum is 30.

The square root of 55134570 is about 7425.2656518134. The cubic root of 55134570 is about 380.6051530442.

The spelling of 55134570 in words is "fifty-five million, one hundred thirty-four thousand, five hundred seventy".