55525646 has 8 divisors (see below), whose sum is σ = 90860184. Its totient is φ = 25238920.

The previous prime is 55525627. The next prime is 55525649. The reversal of 55525646 is 64652555.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55525649) 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, 1261925 + ... + 1261968.

It is an arithmetic number, because the mean of its divisors is an integer number (11357523).

Almost surely, 2^55525646 is an apocalyptic number.

55525646 is a deficient number, since it is larger than the sum of its proper divisors (35334538).

55525646 is a wasteful number, since it uses less digits than its factorization.

55525646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2523906.

The product of its digits is 180000, while the sum is 38.

The square root of 55525646 is about 7451.5532608980. The cubic root of 55525646 is about 381.5029261038.

The spelling of 55525646 in words is "fifty-five million, five hundred twenty-five thousand, six hundred forty-six".