2455020520 has 32 divisors (see below), whose sum is σ = 5714274600. Its totient is φ = 948145408.

The previous prime is 2455020517. The next prime is 2455020523. The reversal of 2455020520 is 250205542.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2455020517) and next prime (2455020523).

It can be written as a sum of positive squares in 4 ways, for example, as 1588660164 + 866360356 = 39858^2 + 29434^2 .

It is not an unprimeable number, because it can be changed into a prime (2455020523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1057039 + ... + 1059358.

Almost surely, 2^2455020520 is an apocalyptic number.

2455020520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2455020520 is an abundant number, since it is smaller than the sum of its proper divisors (3259254080).

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

2455020520 is a wasteful number, since it uses less digits than its factorization.

2455020520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2116437 (or 2116433 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 25.

The square root of 2455020520 is about 49548.1636390290. The cubic root of 2455020520 is about 1349.0199599457.

The spelling of 2455020520 in words is "two billion, four hundred fifty-five million, twenty thousand, five hundred twenty".