55215506701 has 4 divisors (see below), whose sum is σ = 56120679004. Its totient is φ = 54310334400.

The previous prime is 55215506683. The next prime is 55215506713. The reversal of 55215506701 is 10760551255.

55215506701 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10760551255 = 5 ⋅2152110251.

It can be written as a sum of positive squares in 2 ways, for example, as 26536084201 + 28679422500 = 162899^2 + 169350^2 .

It is a cyclic number.

It is not a de Polignac number, because 55215506701 - 2¹³ = 55215498509 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 (55215500701) 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, 452586060 + ... + 452586181.

It is an arithmetic number, because the mean of its divisors is an integer number (14030169751).

Almost surely, 2^55215506701 is an apocalyptic number.

It is an amenable number.

55215506701 is a deficient number, since it is larger than the sum of its proper divisors (905172303).

55215506701 is an equidigital number, since it uses as much as digits as its factorization.

55215506701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 905172302.

The product of its (nonzero) digits is 52500, while the sum is 37.

The spelling of 55215506701 in words is "fifty-five billion, two hundred fifteen million, five hundred six thousand, seven hundred one".