55270403 has 4 divisors (see below), whose sum is σ = 57673488. Its totient is φ = 52867320.

The previous prime is 55270393. The next prime is 55270429. The reversal of 55270403 is 30407255.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30407255 = 5 ⋅6081451.

It is a cyclic number.

It is not a de Polignac number, because 55270403 - 2⁴ = 55270387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55270463) 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, 1201508 + ... + 1201553.

It is an arithmetic number, because the mean of its divisors is an integer number (14418372).

Almost surely, 2^55270403 is an apocalyptic number.

55270403 is a deficient number, since it is larger than the sum of its proper divisors (2403085).

55270403 is a wasteful number, since it uses less digits than its factorization.

55270403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2403084.

The product of its (nonzero) digits is 4200, while the sum is 26.

The square root of 55270403 is about 7434.4067012775. The cubic root of 55270403 is about 380.9174576574.

Adding to 55270403 its reverse (30407255), we get a palindrome (85677658).

The spelling of 55270403 in words is "fifty-five million, two hundred seventy thousand, four hundred three".