55555253 has 4 divisors (see below), whose sum is σ = 59828748. Its totient is φ = 51281760.

The previous prime is 55555237. The next prime is 55555267. The reversal of 55555253 is 35255555.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35255555 = 5 ⋅7051111.

It can be written as a sum of positive squares in 2 ways, for example, as 4761124 + 50794129 = 2182^2 + 7127^2 .

It is a cyclic number.

It is not a de Polignac number, because 55555253 - 2⁴ = 55555237 is a prime.

It is a super-2 number, since 2×55555253² = 6172772271788018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55555223) 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, 2136728 + ... + 2136753.

It is an arithmetic number, because the mean of its divisors is an integer number (14957187).

Almost surely, 2^55555253 is an apocalyptic number.

It is an amenable number.

55555253 is a deficient number, since it is larger than the sum of its proper divisors (4273495).

55555253 is a wasteful number, since it uses less digits than its factorization.

55555253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4273494.

The product of its digits is 93750, while the sum is 35.

The square root of 55555253 is about 7453.5396289280. The cubic root of 55555253 is about 381.5707215039.

The spelling of 55555253 in words is "fifty-five million, five hundred fifty-five thousand, two hundred fifty-three".