2955561 has 8 divisors (see below), whose sum is σ = 4503744. Its totient is φ = 1688880.

The previous prime is 2955559. The next prime is 2955581. The reversal of 2955561 is 1655592.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2955561 - 2¹ = 2955559 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2955521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70350 + ... + 70391.

It is an arithmetic number, because the mean of its divisors is an integer number (562968).

2^2955561 is an apocalyptic number.

2955561 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2955561 is a deficient number, since it is larger than the sum of its proper divisors (1548183).

2955561 is a wasteful number, since it uses less digits than its factorization.

2955561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140751.

The product of its digits is 13500, while the sum is 33.

The square root of 2955561 is about 1719.1745112117. The cubic root of 2955561 is about 143.5092767579.

The spelling of 2955561 in words is "two million, nine hundred fifty-five thousand, five hundred sixty-one".