55672190 has 64 divisors (see below), whose sum is σ = 120821760. Its totient is φ = 18057600.

The previous prime is 55672189. The next prime is 55672193. The reversal of 55672190 is 9127655.

It is a super-2 number, since 2×55672190² = 6198785478792200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 55672190.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55672193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 242996 + ... + 243224.

It is an arithmetic number, because the mean of its divisors is an integer number (1887840).

Almost surely, 2^55672190 is an apocalyptic number.

55672190 is an abundant number, since it is smaller than the sum of its proper divisors (65149570).

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

55672190 is a wasteful number, since it uses less digits than its factorization.

55672190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417.

The product of its (nonzero) digits is 18900, while the sum is 35.

The square root of 55672190 is about 7461.3798991875. The cubic root of 55672190 is about 381.8382537548.

The spelling of 55672190 in words is "fifty-five million, six hundred seventy-two thousand, one hundred ninety".