55672830 has 24 divisors (see below), whose sum is σ = 144749592. Its totient is φ = 14846064.

The previous prime is 55672823. The next prime is 55672847. The reversal of 55672830 is 3827655.

55672830 is a `hidden beast` number, since 556 + 72 + 8 + 30 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 309204 + ... + 309383.

It is an arithmetic number, because the mean of its divisors is an integer number (6031233).

Almost surely, 2^55672830 is an apocalyptic number.

55672830 is an abundant number, since it is smaller than the sum of its proper divisors (89076762).

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

55672830 is a wasteful number, since it uses less digits than its factorization.

55672830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618600 (or 618597 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 55672830 is about 7461.4227865736. The cubic root of 55672830 is about 381.8397169363.

The spelling of 55672830 in words is "fifty-five million, six hundred seventy-two thousand, eight hundred thirty".