9090252005 has 4 divisors (see below), whose sum is σ = 10908302412. Its totient is φ = 7272201600.

The previous prime is 9090251977. The next prime is 9090252013. The reversal of 9090252005 is 5002520909.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5002520909 = 29 ⋅172500721.

It can be written as a sum of positive squares in 2 ways, for example, as 4134232804 + 4956019201 = 64298^2 + 70399^2 .

It is not a de Polignac number, because 9090252005 - 2¹⁴ = 9090235621 is a prime.

It is a Duffinian number.

It is a congruent 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, 909025196 + ... + 909025205.

It is an arithmetic number, because the mean of its divisors is an integer number (2727075603).

Almost surely, 2^9090252005 is an apocalyptic number.

It is an amenable number.

9090252005 is a deficient number, since it is larger than the sum of its proper divisors (1818050407).

9090252005 is a wasteful number, since it uses less digits than its factorization.

9090252005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1818050406.

The product of its (nonzero) digits is 8100, while the sum is 32.

The square root of 9090252005 is about 95342.8130747148. The cubic root of 9090252005 is about 2087.0137372651.

The spelling of 9090252005 in words is "nine billion, ninety million, two hundred fifty-two thousand, five".