55020701 has 4 divisors (see below), whose sum is σ = 55043292. Its totient is φ = 54998112.

The previous prime is 55020697. The next prime is 55020703. The reversal of 55020701 is 10702055.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2805625 + 52215076 = 1675^2 + 7226^2 .

It is a cyclic number.

It is not a de Polignac number, because 55020701 - 2² = 55020697 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55020703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7130 + ... + 12683.

It is an arithmetic number, because the mean of its divisors is an integer number (13760823).

Almost surely, 2^55020701 is an apocalyptic number.

It is an amenable number.

55020701 is a deficient number, since it is larger than the sum of its proper divisors (22591).

55020701 is a wasteful number, since it uses less digits than its factorization.

55020701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22590.

The product of its (nonzero) digits is 350, while the sum is 20.

The square root of 55020701 is about 7417.5940169303. The cubic root of 55020701 is about 380.3429521635.

Adding to 55020701 its reverse (10702055), we get a palindrome (65722756).

The spelling of 55020701 in words is "fifty-five million, twenty thousand, seven hundred one".