55791782 has 16 divisors (see below), whose sum is σ = 86536032. Its totient is φ = 26956800.

The previous prime is 55791761. The next prime is 55791811. The reversal of 55791782 is 28719755.

It is a super-2 number, since 2×55791782² = 6225445877471048, which contains 22 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8678 + ... + 13670.

It is an arithmetic number, because the mean of its divisors is an integer number (5408502).

Almost surely, 2^55791782 is an apocalyptic number.

55791782 is a deficient number, since it is larger than the sum of its proper divisors (30744250).

55791782 is a wasteful number, since it uses less digits than its factorization.

55791782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5183.

The product of its digits is 176400, while the sum is 44.

The square root of 55791782 is about 7469.3896671683. The cubic root of 55791782 is about 382.1114730000. Note that the first 3 decimals are identical.

The spelling of 55791782 in words is "fifty-five million, seven hundred ninety-one thousand, seven hundred eighty-two".