2361555 has 80 divisors (see below), whose sum is σ = 5227200. Its totient is φ = 1016064.

The previous prime is 2361539. The next prime is 2361563. The reversal of 2361555 is 5551632.

It is not a de Polignac number, because 2361555 - 2⁴ = 2361539 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 138907 + ... + 138923.

It is an arithmetic number, because the mean of its divisors is an integer number (65340).

2^2361555 is an apocalyptic number.

2361555 is an abundant number, since it is smaller than the sum of its proper divisors (2865645).

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

2361555 is an equidigital number, since it uses as much as digits as its factorization.

2361555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55 (or 32 counting only the distinct ones).

The product of its digits is 4500, while the sum is 27.

The square root of 2361555 is about 1536.7351756240. The cubic root of 2361555 is about 133.1678398131.

It can be divided in two parts, 2361 and 555, that added together give a square (2916 = 54²).

The spelling of 2361555 in words is "two million, three hundred sixty-one thousand, five hundred fifty-five".