55551006 has 36 divisors (see below), whose sum is σ = 140013432. Its totient is φ = 15871464.

The previous prime is 55550993. The next prime is 55551007. The reversal of 55551006 is 60015555.

55551006 is a `hidden beast` number, since 5 + 555 + 100 + 6 = 666.

It is a super-2 number, since 2×55551006² = 6171828535224072, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55551007) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 30610 + ... + 32373.

It is an arithmetic number, because the mean of its divisors is an integer number (3889262).

Almost surely, 2^55551006 is an apocalyptic number.

55551006 is an abundant number, since it is smaller than the sum of its proper divisors (84462426).

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

55551006 is a wasteful number, since it uses less digits than its factorization.

55551006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63005 (or 62995 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 27.

The square root of 55551006 is about 7453.2547252861. The cubic root of 55551006 is about 381.5609980180.

It can be divided in two parts, 5555 and 1006, that added together give a 8-th power (6561 = 3⁸).

The spelling of 55551006 in words is "fifty-five million, five hundred fifty-one thousand, six".