55313303 has 2 divisors, whose sum is σ = 55313304. Its totient is φ = 55313302.

The previous prime is 55313281. The next prime is 55313381. The reversal of 55313303 is 30331355.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55313303 - 2¹⁶ = 55247767 is a prime.

It is a super-2 number, since 2×55313303² = 6119122977539618, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55313803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27656651 + 27656652.

It is an arithmetic number, because the mean of its divisors is an integer number (27656652).

Almost surely, 2^55313303 is an apocalyptic number.

55313303 is a deficient number, since it is larger than the sum of its proper divisors (1).

55313303 is an equidigital number, since it uses as much as digits as its factorization.

55313303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2025, while the sum is 23.

The square root of 55313303 is about 7437.2913752253. The cubic root of 55313303 is about 381.0159861760.

Adding to 55313303 its reverse (30331355), we get a palindrome (85644658).

The spelling of 55313303 in words is "fifty-five million, three hundred thirteen thousand, three hundred three".