55070928 has 100 divisors (see below), whose sum is σ = 173926368. Its totient is φ = 16683840.

The previous prime is 55070927. The next prime is 55070941. The reversal of 55070928 is 82907055.

It is a super-2 number, since 2×55070928² = 6065614221562368, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 55070892 and 55070901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55070921) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 12325 + ... + 16187.

Almost surely, 2^55070928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55070928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86963184).

55070928 is an abundant number, since it is smaller than the sum of its proper divisors (118855440).

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

55070928 is a wasteful number, since it uses less digits than its factorization.

55070928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3894 (or 3879 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The square root of 55070928 is about 7420.9789111680. The cubic root of 55070928 is about 380.4586521032.

The spelling of 55070928 in words is "fifty-five million, seventy thousand, nine hundred twenty-eight".