2551101 has 32 divisors (see below), whose sum is σ = 4147200. Its totient is φ = 1364160.

The previous prime is 2551099. The next prime is 2551103. The reversal of 2551101 is 1011552.

It is an interprime number because it is at equal distance from previous prime (2551099) and next prime (2551103).

It is not a de Polignac number, because 2551101 - 2¹ = 2551099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2551103) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35896 + ... + 35966.

It is an arithmetic number, because the mean of its divisors is an integer number (129600).

2^2551101 is an apocalyptic number.

2551101 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2551101 is a deficient number, since it is larger than the sum of its proper divisors (1596099).

2551101 is a wasteful number, since it uses less digits than its factorization.

2551101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169.

The product of its (nonzero) digits is 50, while the sum is 15.

The square root of 2551101 is about 1597.2166415361. The cubic root of 2551101 is about 136.6393805001.

Adding to 2551101 its reverse (1011552), we get a palindrome (3562653).

The spelling of 2551101 in words is "two million, five hundred fifty-one thousand, one hundred one".