55387862 has 12 divisors (see below), whose sum is σ = 84687540. Its totient is φ = 27168648.

The previous prime is 55387861. The next prime is 55387877. The reversal of 55387862 is 26878355.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55387861) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 689 + ... + 10547.

It is an arithmetic number, because the mean of its divisors is an integer number (7057295).

Almost surely, 2^55387862 is an apocalyptic number.

55387862 is a deficient number, since it is larger than the sum of its proper divisors (29299678).

55387862 is an equidigital number, since it uses as much as digits as its factorization.

55387862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9967 (or 9914 counting only the distinct ones).

The product of its digits is 403200, while the sum is 44.

The square root of 55387862 is about 7442.3021975730. The cubic root of 55387862 is about 381.1871048446.

The spelling of 55387862 in words is "fifty-five million, three hundred eighty-seven thousand, eight hundred sixty-two".