55426969 has 8 divisors (see below), whose sum is σ = 59906952. Its totient is φ = 50977920.

The previous prime is 55426967. The next prime is 55427011. The reversal of 55426969 is 96962455.

It can be written as a sum of positive squares in 4 ways, for example, as 14722569 + 40704400 = 3837^2 + 6380^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55426969 - 2¹ = 55426967 is a prime.

It is a super-2 number, since 2×55426969² = 6144297785053922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55426967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3934 + ... + 11239.

It is an arithmetic number, because the mean of its divisors is an integer number (7488369).

Almost surely, 2^55426969 is an apocalyptic number.

It is an amenable number.

55426969 is a deficient number, since it is larger than the sum of its proper divisors (4479983).

55426969 is a wasteful number, since it uses less digits than its factorization.

55426969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15467.

The product of its digits is 583200, while the sum is 46.

The square root of 55426969 is about 7444.9290795816. The cubic root of 55426969 is about 381.2767970415.

The spelling of 55426969 in words is "fifty-five million, four hundred twenty-six thousand, nine hundred sixty-nine".