2521453473 has 48 divisors (see below), whose sum is σ = 4545590400. Its totient is φ = 1308464640.

The previous prime is 2521453469. The next prime is 2521453511. The reversal of 2521453473 is 3743541252.

2521453473 is a `hidden beast` number, since 2 + 52 + 1 + 4 + 534 + 73 = 666.

It is not a de Polignac number, because 2521453473 - 2² = 2521453469 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2521453423) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1183273 + ... + 1185401.

It is an arithmetic number, because the mean of its divisors is an integer number (94699800).

Almost surely, 2^2521453473 is an apocalyptic number.

It is an amenable number.

2521453473 is a deficient number, since it is larger than the sum of its proper divisors (2024136927).

2521453473 is a wasteful number, since it uses less digits than its factorization.

2521453473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3862 (or 3859 counting only the distinct ones).

The product of its digits is 100800, while the sum is 36.

The square root of 2521453473 is about 50214.0764427665. The cubic root of 2521453473 is about 1361.0800015885.

It can be divided in two parts, 25214 and 53473, that added together give a palindrome (78687).

The spelling of 2521453473 in words is "two billion, five hundred twenty-one million, four hundred fifty-three thousand, four hundred seventy-three".