55645026 has 32 divisors (see below), whose sum is σ = 116544960. Its totient is φ = 17688384.

The previous prime is 55645021. The next prime is 55645033. The reversal of 55645026 is 62054655.

It is a happy number.

It is a super-3 number, since 3×55645026³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (55645021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12516 + ... + 16368.

It is an arithmetic number, because the mean of its divisors is an integer number (3642030).

Almost surely, 2^55645026 is an apocalyptic number.

55645026 is an abundant number, since it is smaller than the sum of its proper divisors (60899934).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55645026 is a wasteful number, since it uses less digits than its factorization.

55645026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3970.

The product of its (nonzero) digits is 36000, while the sum is 33.

The square root of 55645026 is about 7459.5593703650. The cubic root of 55645026 is about 381.7761405061.

The spelling of 55645026 in words is "fifty-five million, six hundred forty-five thousand, twenty-six".