55667020 has 24 divisors (see below), whose sum is σ = 117180000. Its totient is φ = 22213632.

The previous prime is 55667011. The next prime is 55667023. The reversal of 55667020 is 2076655.

It is not an unprimeable number, because it can be changed into a prime (55667023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5881 + ... + 12079.

It is an arithmetic number, because the mean of its divisors is an integer number (4882500).

Almost surely, 2^55667020 is an apocalyptic number.

It is an amenable number.

55667020 is an abundant number, since it is smaller than the sum of its proper divisors (61512980).

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

55667020 is a wasteful number, since it uses less digits than its factorization.

55667020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6657 (or 6655 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 55667020 is about 7461.0334404826. The cubic root of 55667020 is about 381.8264335810.

It can be divided in two parts, 556 and 67020, that added together give a palindrome (67576).

The spelling of 55667020 in words is "fifty-five million, six hundred sixty-seven thousand, twenty".