2455121420 has 24 divisors (see below), whose sum is σ = 5203944144. Its totient is φ = 972869696.

The previous prime is 2455121387. The next prime is 2455121429. The reversal of 2455121420 is 241215542.

It is a self number, because there is not a number n which added to its sum of digits gives 2455121420.

It is not an unprimeable number, because it can be changed into a prime (2455121429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 571487 + ... + 575766.

It is an arithmetic number, because the mean of its divisors is an integer number (216831006).

Almost surely, 2^2455121420 is an apocalyptic number.

2455121420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2455121420 is an abundant number, since it is smaller than the sum of its proper divisors (2748822724).

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

2455121420 is a wasteful number, since it uses less digits than its factorization.

2455121420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1147369 (or 1147367 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 2455121420 is about 49549.1818297739. The cubic root of 2455121420 is about 1349.0384410200.

Adding to 2455121420 its reverse (241215542), we get a palindrome (2696336962).

The spelling of 2455121420 in words is "two billion, four hundred fifty-five million, one hundred twenty-one thousand, four hundred twenty".