55307053 has 4 divisors (see below), whose sum is σ = 56213788. Its totient is φ = 54400320.

The previous prime is 55307051. The next prime is 55307071. The reversal of 55307053 is 35070355.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35070355 = 5 ⋅7014071.

It can be written as a sum of positive squares in 2 ways, for example, as 24980004 + 30327049 = 4998^2 + 5507^2 .

It is a cyclic number.

It is not a de Polignac number, because 55307053 - 2¹ = 55307051 is a prime.

It is a super-2 number, since 2×55307053² = 6117740223089618, 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 (55307051) 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, 453276 + ... + 453397.

It is an arithmetic number, because the mean of its divisors is an integer number (14053447).

Almost surely, 2^55307053 is an apocalyptic number.

It is an amenable number.

55307053 is a deficient number, since it is larger than the sum of its proper divisors (906735).

55307053 is an equidigital number, since it uses as much as digits as its factorization.

55307053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906734.

The product of its (nonzero) digits is 7875, while the sum is 28.

The square root of 55307053 is about 7436.8711835018. The cubic root of 55307053 is about 381.0016349592.

The spelling of 55307053 in words is "fifty-five million, three hundred seven thousand, fifty-three".