2525252465 has 4 divisors (see below), whose sum is σ = 3030302964. Its totient is φ = 2020201968.

The previous prime is 2525252449. The next prime is 2525252491. The reversal of 2525252465 is 5642525252.

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 1444684081 + 1080568384 = 38009^2 + 32872^2 .

It is a cyclic number.

It is not a de Polignac number, because 2525252465 - 2⁴ = 2525252449 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252525242 + ... + 252525251.

It is an arithmetic number, because the mean of its divisors is an integer number (757575741).

Almost surely, 2^2525252465 is an apocalyptic number.

It is an amenable number.

2525252465 is a deficient number, since it is larger than the sum of its proper divisors (505050499).

2525252465 is an equidigital number, since it uses as much as digits as its factorization.

2525252465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505050498.

The product of its digits is 240000, while the sum is 38.

The square root of 2525252465 is about 50251.8901634555. The cubic root of 2525252465 is about 1361.7632235748.

The spelling of 2525252465 in words is "two billion, five hundred twenty-five million, two hundred fifty-two thousand, four hundred sixty-five".