55702020 has 96 divisors (see below), whose sum is σ = 174819456. Its totient is φ = 13132800.

The previous prime is 55702019. The next prime is 55702027. The reversal of 55702020 is 2020755.

It is not an unprimeable number, because it can be changed into a prime (55702027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23280 + ... + 25560.

It is an arithmetic number, because the mean of its divisors is an integer number (1821036).

Almost surely, 2^55702020 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 55702020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87409728).

55702020 is an abundant number, since it is smaller than the sum of its proper divisors (119117436).

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

55702020 is a wasteful number, since it uses less digits than its factorization.

55702020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2341 (or 2339 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 21.

The square root of 55702020 is about 7463.3785914959. The cubic root of 55702020 is about 381.9064398118.

Adding to 55702020 its reverse (2020755), we get a palindrome (57722775).

It can be divided in two parts, 557020 and 20, that added together give a triangular number (557040 = T₁₀₅₅).

The spelling of 55702020 in words is "fifty-five million, seven hundred two thousand, twenty".