2455621013 has 8 divisors (see below), whose sum is σ = 2563481088. Its totient is φ = 2347852144.

The previous prime is 2455621001. The next prime is 2455621019. The reversal of 2455621013 is 3101265542.

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

It is not a de Polignac number, because 2455621013 - 2²⁸ = 2187185557 is a prime.

It is a super-3 number, since 3×2455621013³ (a number of 29 digits) contains 333 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 (2455621019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35420 + ... + 78522.

It is an arithmetic number, because the mean of its divisors is an integer number (320435136).

Almost surely, 2^2455621013 is an apocalyptic number.

2455621013 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2455621013 is a deficient number, since it is larger than the sum of its proper divisors (107860075).

2455621013 is a wasteful number, since it uses less digits than its factorization.

2455621013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45603.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 2455621013 is about 49554.2229582909. Note that the first 3 decimals coincide. The cubic root of 2455621013 is about 1349.1299401540.

Adding to 2455621013 its reverse (3101265542), we get a palindrome (5556886555).

The spelling of 2455621013 in words is "two billion, four hundred fifty-five million, six hundred twenty-one thousand, thirteen".