7250642569 has 4 divisors (see below), whose sum is σ = 7278855444. Its totient is φ = 7222429696.

The previous prime is 7250642533. The next prime is 7250642587. The reversal of 7250642569 is 9652460527.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9652460527 = 103 ⋅93713209.

It can be written as a sum of positive squares in 2 ways, for example, as 6573966400 + 676676169 = 81080^2 + 26013^2 .

It is a cyclic number.

It is not a de Polignac number, because 7250642569 - 2²⁷ = 7116424841 is a prime.

It is a super-2 number, since 2×7250642569² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7250642599) 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, 14106052 + ... + 14106565.

It is an arithmetic number, because the mean of its divisors is an integer number (1819713861).

Almost surely, 2^7250642569 is an apocalyptic number.

It is an amenable number.

7250642569 is a deficient number, since it is larger than the sum of its proper divisors (28212875).

7250642569 is a wasteful number, since it uses less digits than its factorization.

7250642569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28212874.

The product of its (nonzero) digits is 907200, while the sum is 46.

The square root of 7250642569 is about 85150.7050411211. The cubic root of 7250642569 is about 1935.4954980576.

The spelling of 7250642569 in words is "seven billion, two hundred fifty million, six hundred forty-two thousand, five hundred sixty-nine".