2455919 has 4 divisors (see below), whose sum is σ = 2463120. Its totient is φ = 2448720.

The previous prime is 2455909. The next prime is 2455927. The reversal of 2455919 is 9195542.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9195542 = 2 ⋅4597771.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2455919 is a prime.

It is a super-2 number, since 2×2455919² = 12063076269122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2455909) 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, 3062 + ... + 3779.

It is an arithmetic number, because the mean of its divisors is an integer number (615780).

2^2455919 is an apocalyptic number.

2455919 is a deficient number, since it is larger than the sum of its proper divisors (7201).

2455919 is an equidigital number, since it uses as much as digits as its factorization.

2455919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7200.

The product of its digits is 16200, while the sum is 35.

The square root of 2455919 is about 1567.1371988438. The cubic root of 2455919 is about 134.9184509775.

The spelling of 2455919 in words is "two million, four hundred fifty-five thousand, nine hundred nineteen".