2053515450 has 96 divisors (see below), whose sum is σ = 5890622976. Its totient is φ = 463700160.

The previous prime is 2053515449. The next prime is 2053515479. The reversal of 2053515450 is 545153502.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 75369 + ... + 98931.

It is an arithmetic number, because the mean of its divisors is an integer number (61360656).

Almost surely, 2^2053515450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2053515450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2945311488).

2053515450 is an abundant number, since it is smaller than the sum of its proper divisors (3837107526).

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

2053515450 is a wasteful number, since it uses less digits than its factorization.

2053515450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23668 (or 23663 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 30.

The square root of 2053515450 is about 45315.7307124138. The cubic root of 2053515450 is about 1271.0598237785.

Adding to 2053515450 its reverse (545153502), we get a palindrome (2598668952).

The spelling of 2053515450 in words is "two billion, fifty-three million, five hundred fifteen thousand, four hundred fifty".