2521454465 has 16 divisors (see below), whose sum is σ = 3186822528. Its totient is φ = 1911419136.

The previous prime is 2521454393. The next prime is 2521454473. The reversal of 2521454465 is 5644541252.

It is a cyclic number.

It is not a de Polignac number, because 2521454465 - 2¹⁴ = 2521438081 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90152 + ... + 114761.

It is an arithmetic number, because the mean of its divisors is an integer number (199176408).

Almost surely, 2^2521454465 is an apocalyptic number.

It is an amenable number.

2521454465 is a deficient number, since it is larger than the sum of its proper divisors (665368063).

2521454465 is a wasteful number, since it uses less digits than its factorization.

2521454465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205048.

The product of its digits is 192000, while the sum is 38.

The square root of 2521454465 is about 50214.0863204739. The cubic root of 2521454465 is about 1361.0801800823.

The spelling of 2521454465 in words is "two billion, five hundred twenty-one million, four hundred fifty-four thousand, four hundred sixty-five".