55248629 has 4 divisors (see below), whose sum is σ = 55320876. Its totient is φ = 55176384.

The previous prime is 55248617. The next prime is 55248649. The reversal of 55248629 is 92684255.

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 24700900 + 30547729 = 4970^2 + 5527^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55248629 is a prime.

It is a super-2 number, since 2×55248629² = 6104822012759282, 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 (55248649) 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, 34964 + ... + 36509.

It is an arithmetic number, because the mean of its divisors is an integer number (13830219).

Almost surely, 2^55248629 is an apocalyptic number.

It is an amenable number.

55248629 is a deficient number, since it is larger than the sum of its proper divisors (72247).

55248629 is an equidigital number, since it uses as much as digits as its factorization.

55248629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72246.

The product of its digits is 172800, while the sum is 41.

The square root of 55248629 is about 7432.9421496471. The cubic root of 55248629 is about 380.8674297602.

The spelling of 55248629 in words is "fifty-five million, two hundred forty-eight thousand, six hundred twenty-nine".