55791654 has 16 divisors (see below), whose sum is σ = 118147248. Its totient is φ = 17503232.

The previous prime is 55791653. The next prime is 55791691. The reversal of 55791654 is 45619755.

It is a super-2 number, since 2×55791654² = 6225417312111432, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55791653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 273387 + ... + 273590.

It is an arithmetic number, because the mean of its divisors is an integer number (7384203).

Almost surely, 2^55791654 is an apocalyptic number.

55791654 is an abundant number, since it is smaller than the sum of its proper divisors (62355594).

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

55791654 is a wasteful number, since it uses less digits than its factorization.

55791654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546999.

The product of its digits is 189000, while the sum is 42.

The square root of 55791654 is about 7469.3810988595. The cubic root of 55791654 is about 382.1111807807. Note that the first 4 decimals are identical.

The spelling of 55791654 in words is "fifty-five million, seven hundred ninety-one thousand, six hundred fifty-four".