2455451 has 4 divisors (see below), whose sum is σ = 2473512. Its totient is φ = 2437392.

The previous prime is 2455447. The next prime is 2455469. The reversal of 2455451 is 1545542.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1545542 = 2 ⋅772771.

It is a cyclic number.

It is not a de Polignac number, because 2455451 - 2² = 2455447 is a prime.

It is a super-2 number, since 2×2455451² = 12058479226802, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 2455451.

It is not an unprimeable number, because it can be changed into a prime (2455471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8825 + ... + 9098.

It is an arithmetic number, because the mean of its divisors is an integer number (618378).

2^2455451 is an apocalyptic number.

2455451 is a deficient number, since it is larger than the sum of its proper divisors (18061).

2455451 is a wasteful number, since it uses less digits than its factorization.

2455451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18060.

The product of its digits is 4000, while the sum is 26.

The square root of 2455451 is about 1566.9878748733. The cubic root of 2455451 is about 134.9098804117.

Subtracting from 2455451 its reverse (1545542), we obtain a palindrome (909909).

The spelling of 2455451 in words is "two million, four hundred fifty-five thousand, four hundred fifty-one".