55655450 has 48 divisors (see below), whose sum is σ = 112352184. Its totient is φ = 20428800.

The previous prime is 55655449. The next prime is 55655471. The reversal of 55655450 is 5455655.

It can be written as a sum of positive squares in 12 ways, for example, as 108241 + 55547209 = 329^2 + 7453^2 .

It is a super-2 number, since 2×55655450² = 6195058229405000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55655450.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34052 + ... + 35648.

Almost surely, 2^55655450 is an apocalyptic number.

55655450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55655450 is an abundant number, since it is smaller than the sum of its proper divisors (56696734).

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

55655450 is a wasteful number, since it uses less digits than its factorization.

55655450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1667 (or 1662 counting only the distinct ones).

The product of its (nonzero) digits is 75000, while the sum is 35.

The square root of 55655450 is about 7460.2580384327. The cubic root of 55655450 is about 381.7999784320.

The spelling of 55655450 in words is "fifty-five million, six hundred fifty-five thousand, four hundred fifty".