2455645420 has 12 divisors (see below), whose sum is σ = 5156855424. Its totient is φ = 982258160.

The previous prime is 2455645417. The next prime is 2455645429. The reversal of 2455645420 is 245465542.

It is a happy number.

2455645420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 2455645420.

It is not an unprimeable number, because it can be changed into a prime (2455645429) 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, 61391116 + ... + 61391155.

It is an arithmetic number, because the mean of its divisors is an integer number (429737952).

Almost surely, 2^2455645420 is an apocalyptic number.

2455645420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2455645420 is an abundant number, since it is smaller than the sum of its proper divisors (2701210004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2455645420 is a wasteful number, since it uses less digits than its factorization.

2455645420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122782280 (or 122782278 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 37.

The square root of 2455645420 is about 49554.4692232699. The cubic root of 2455645420 is about 1349.1344099134.

The spelling of 2455645420 in words is "two billion, four hundred fifty-five million, six hundred forty-five thousand, four hundred twenty".