55005250 has 16 divisors (see below), whose sum is σ = 102970296. Its totient is φ = 22002000.

The previous prime is 55005241. The next prime is 55005263. The reversal of 55005250 is 5250055.

It can be written as a sum of positive squares in 4 ways, for example, as 23902321 + 31102929 = 4889^2 + 5577^2 .

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, 109761 + ... + 110260.

Almost surely, 2^55005250 is an apocalyptic number.

55005250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55005250 is a deficient number, since it is larger than the sum of its proper divisors (47965046).

55005250 is a wasteful number, since it uses less digits than its factorization.

55005250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220038 (or 220028 counting only the distinct ones).

The product of its (nonzero) digits is 1250, while the sum is 22.

The square root of 55005250 is about 7416.5524335772. The cubic root of 55005250 is about 380.3073459944.

It can be divided in two parts, 55005 and 250, that added together give a palindrome (55255).

The spelling of 55005250 in words is "fifty-five million, five thousand, two hundred fifty".