55129670 has 8 divisors (see below), whose sum is σ = 99233424. Its totient is φ = 22051864.

The previous prime is 55129631. The next prime is 55129681. The reversal of 55129670 is 7692155.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 55129670.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2756474 + ... + 2756493.

It is an arithmetic number, because the mean of its divisors is an integer number (12404178).

Almost surely, 2^55129670 is an apocalyptic number.

55129670 is a deficient number, since it is larger than the sum of its proper divisors (44103754).

55129670 is a wasteful number, since it uses less digits than its factorization.

55129670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5512974.

The product of its (nonzero) digits is 18900, while the sum is 35.

The square root of 55129670 is about 7424.9356899572. The cubic root of 55129670 is about 380.5938774779.

The spelling of 55129670 in words is "fifty-five million, one hundred twenty-nine thousand, six hundred seventy".