55030253 has 2 divisors, whose sum is σ = 55030254. Its totient is φ = 55030252.

The previous prime is 55030231. The next prime is 55030259. The reversal of 55030253 is 35203055.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54361129 + 669124 = 7373^2 + 818^2 .

It is a cyclic number.

It is not a de Polignac number, because 55030253 - 2⁶ = 55030189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55030259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27515126 + 27515127.

It is an arithmetic number, because the mean of its divisors is an integer number (27515127).

Almost surely, 2^55030253 is an apocalyptic number.

It is an amenable number.

55030253 is a deficient number, since it is larger than the sum of its proper divisors (1).

55030253 is an equidigital number, since it uses as much as digits as its factorization.

55030253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2250, while the sum is 23.

The square root of 55030253 is about 7418.2378635361. The cubic root of 55030253 is about 380.3649610049.

It can be divided in two parts, 550 and 30253, that added together give a palindrome (30803).

The spelling of 55030253 in words is "fifty-five million, thirty thousand, two hundred fifty-three".