55051253 has 4 divisors (see below), whose sum is σ = 58289580. Its totient is φ = 51812928.

The previous prime is 55051231. The next prime is 55051261. The reversal of 55051253 is 35215055.

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 29669809 + 25381444 = 5447^2 + 5038^2 .

It is a cyclic number.

It is not a de Polignac number, because 55051253 - 2⁸ = 55050997 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 (55051273) 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, 1619138 + ... + 1619171.

It is an arithmetic number, because the mean of its divisors is an integer number (14572395).

Almost surely, 2^55051253 is an apocalyptic number.

It is an amenable number.

55051253 is a deficient number, since it is larger than the sum of its proper divisors (3238327).

55051253 is a wasteful number, since it uses less digits than its factorization.

55051253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3238326.

The product of its (nonzero) digits is 3750, while the sum is 26.

The square root of 55051253 is about 7419.6531590095. The cubic root of 55051253 is about 380.4133383241.

The spelling of 55051253 in words is "fifty-five million, fifty-one thousand, two hundred fifty-three".