55426249 has 4 divisors (see below), whose sum is σ = 58343440. Its totient is φ = 52509060.

The previous prime is 55426243. The next prime is 55426253. The reversal of 55426249 is 94262455.

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 55426249 - 2⁷ = 55426121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55426243) 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, 1458567 + ... + 1458604.

It is an arithmetic number, because the mean of its divisors is an integer number (14585860).

Almost surely, 2^55426249 is an apocalyptic number.

It is an amenable number.

55426249 is a deficient number, since it is larger than the sum of its proper divisors (2917191).

55426249 is a wasteful number, since it uses less digits than its factorization.

55426249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2917190.

The product of its digits is 86400, while the sum is 37.

The square root of 55426249 is about 7444.8807243636. The cubic root of 55426249 is about 381.2751460974.

The spelling of 55426249 in words is "fifty-five million, four hundred twenty-six thousand, two hundred forty-nine".