55187082 has 20 divisors (see below), whose sum is σ = 123660306. Its totient is φ = 18395640.

The previous prime is 55187063. The next prime is 55187101. The reversal of 55187082 is 28078155.

It is an interprime number because it is at equal distance from previous prime (55187063) and next prime (55187101).

It can be written as a sum of positive squares in only one way, i.e., 39576681 + 15610401 = 6291^2 + 3951^2 .

It is a super-2 number, since 2×55187082² = 6091228039349448, which contains 22 as substring.

It is an unprimeable number.

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 9 ways as a sum of consecutive naturals, for example, 170169 + ... + 170492.

Almost surely, 2^55187082 is an apocalyptic number.

55187082 is an abundant number, since it is smaller than the sum of its proper divisors (68473224).

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

55187082 is a wasteful number, since it uses less digits than its factorization.

55187082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340675 (or 340666 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 36.

The square root of 55187082 is about 7428.8008453586. The cubic root of 55187082 is about 380.7259483754.

The spelling of 55187082 in words is "fifty-five million, one hundred eighty-seven thousand, eighty-two".