2455556 has 6 divisors (see below), whose sum is σ = 4297230. Its totient is φ = 1227776.

The previous prime is 2455553. The next prime is 2455561. The reversal of 2455556 is 6555542.

It can be written as a sum of positive squares in only one way, i.e., 2353156 + 102400 = 1534^2 + 320^2 .

It is a plaindrome in base 10 and base 15.

It is not an unprimeable number, because it can be changed into a prime (2455553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306941 + ... + 306948.

It is an arithmetic number, because the mean of its divisors is an integer number (716205).

2^2455556 is an apocalyptic number.

It is an amenable number.

2455556 is a deficient number, since it is larger than the sum of its proper divisors (1841674).

2455556 is a wasteful number, since it uses less digits than its factorization.

2455556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613893 (or 613891 counting only the distinct ones).

The product of its digits is 30000, while the sum is 32.

The square root of 2455556 is about 1567.0213782843. The cubic root of 2455556 is about 134.9118033898.

The spelling of 2455556 in words is "two million, four hundred fifty-five thousand, five hundred fifty-six".