55250413 has 4 divisors (see below), whose sum is σ = 55766880. Its totient is φ = 54733948.

The previous prime is 55250383. The next prime is 55250441. The reversal of 55250413 is 31405255.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55250413 - 2²⁵ = 21695981 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 (55250453) 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, 258073 + ... + 258286.

It is an arithmetic number, because the mean of its divisors is an integer number (13941720).

Almost surely, 2^55250413 is an apocalyptic number.

It is an amenable number.

55250413 is a deficient number, since it is larger than the sum of its proper divisors (516467).

55250413 is a wasteful number, since it uses less digits than its factorization.

55250413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516466.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 55250413 is about 7433.0621549937. The cubic root of 55250413 is about 380.8715291692.

Adding to 55250413 its reverse (31405255), we get a palindrome (86655668).

The spelling of 55250413 in words is "fifty-five million, two hundred fifty thousand, four hundred thirteen".