2555901 has 16 divisors (see below), whose sum is σ = 3814720. Its totient is φ = 1691280.

The previous prime is 2555897. The next prime is 2555911. The reversal of 2555901 is 1095552.

It is not a de Polignac number, because 2555901 - 2² = 2555897 is a prime.

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

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2555911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4626 + ... + 5148.

It is an arithmetic number, because the mean of its divisors is an integer number (238420).

2^2555901 is an apocalyptic number.

It is an amenable number.

2555901 is a deficient number, since it is larger than the sum of its proper divisors (1258819).

2555901 is a wasteful number, since it uses less digits than its factorization.

2555901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713 (or 707 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 27.

The square root of 2555901 is about 1598.7185493388. The cubic root of 2555901 is about 136.7250243205.

The spelling of 2555901 in words is "two million, five hundred fifty-five thousand, nine hundred one".