55611253 has 2 divisors, whose sum is σ = 55611254. Its totient is φ = 55611252.

The previous prime is 55611251. The next prime is 55611277. The reversal of 55611253 is 35211655.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43270084 + 12341169 = 6578^2 + 3513^2 .

It is a cyclic number.

It is not a de Polignac number, because 55611253 - 2¹ = 55611251 is a prime.

It is a super-2 number, since 2×55611253² = 6185222920460018, which contains 22 as substring.

Together with 55611251, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55611251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27805626 + 27805627.

It is an arithmetic number, because the mean of its divisors is an integer number (27805627).

Almost surely, 2^55611253 is an apocalyptic number.

It is an amenable number.

55611253 is a deficient number, since it is larger than the sum of its proper divisors (1).

55611253 is an equidigital number, since it uses as much as digits as its factorization.

55611253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4500, while the sum is 28.

The square root of 55611253 is about 7457.2952871668. The cubic root of 55611253 is about 381.6988869104.

The spelling of 55611253 in words is "fifty-five million, six hundred eleven thousand, two hundred fifty-three".