2531545453 has 4 divisors (see below), whose sum is σ = 2531717500. Its totient is φ = 2531373408.

The previous prime is 2531545417. The next prime is 2531545469. The reversal of 2531545453 is 3545451352.

2531545453 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1988981604 + 542563849 = 44598^2 + 23293^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2531545453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2531545403) 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, 61650 + ... + 94147.

It is an arithmetic number, because the mean of its divisors is an integer number (632929375).

Almost surely, 2^2531545453 is an apocalyptic number.

It is an amenable number.

2531545453 is a deficient number, since it is larger than the sum of its proper divisors (172047).

2531545453 is a wasteful number, since it uses less digits than its factorization.

2531545453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172046.

The product of its digits is 180000, while the sum is 37.

The square root of 2531545453 is about 50314.4656435900. The cubic root of 2531545453 is about 1362.8934671272.

The spelling of 2531545453 in words is "two billion, five hundred thirty-one million, five hundred forty-five thousand, four hundred fifty-three".