55426651 has 4 divisors (see below), whose sum is σ = 63344752. Its totient is φ = 47508552.

The previous prime is 55426639. The next prime is 55426663. The reversal of 55426651 is 15662455.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (55426639) and next prime (55426663).

It is not a de Polignac number, because 55426651 - 2⁹ = 55426139 is a prime.

It is a super-2 number, since 2×55426651² = 6144227282151602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55426691) 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 3 ways as a sum of consecutive naturals, for example, 3959040 + ... + 3959053.

It is an arithmetic number, because the mean of its divisors is an integer number (15836188).

Almost surely, 2^55426651 is an apocalyptic number.

55426651 is a deficient number, since it is larger than the sum of its proper divisors (7918101).

55426651 is an equidigital number, since it uses as much as digits as its factorization.

55426651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7918100.

The product of its digits is 36000, while the sum is 34.

The square root of 55426651 is about 7444.9077227324. The cubic root of 55426651 is about 381.2760678763.

The spelling of 55426651 in words is "fifty-five million, four hundred twenty-six thousand, six hundred fifty-one".