55070520 has 32 divisors (see below), whose sum is σ = 165211920. Its totient is φ = 14685440.

The previous prime is 55070513. The next prime is 55070527. The reversal of 55070520 is 2507055.

It is an interprime number because it is at equal distance from previous prime (55070513) and next prime (55070527).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55070527) 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, 229341 + ... + 229580.

Almost surely, 2^55070520 is an apocalyptic number.

It is an amenable number.

55070520 is an abundant number, since it is smaller than the sum of its proper divisors (110141400).

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

55070520 is a wasteful number, since it uses less digits than its factorization.

55070520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458935 (or 458931 counting only the distinct ones).

The product of its (nonzero) digits is 1750, while the sum is 24.

The square root of 55070520 is about 7420.9514214823. The cubic root of 55070520 is about 380.4577125421.

Adding to 55070520 its reverse (2507055), we get a palindrome (57577575).

It can be divided in two parts, 550705 and 20, that added together give a triangular number (550725 = T₁₀₄₉).

The spelling of 55070520 in words is "fifty-five million, seventy thousand, five hundred twenty".