7250257578 has 32 divisors (see below), whose sum is σ = 15055983360. Its totient is φ = 2324790720.

The previous prime is 7250257577. The next prime is 7250257579. The reversal of 7250257578 is 8757520527.

It is an interprime number because it is at equal distance from previous prime (7250257577) and next prime (7250257579).

It is not an unprimeable number, because it can be changed into a prime (7250257577) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29725 + ... + 124032.

It is an arithmetic number, because the mean of its divisors is an integer number (470499480).

Almost surely, 2^7250257578 is an apocalyptic number.

7250257578 is an abundant number, since it is smaller than the sum of its proper divisors (7805725782).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7250257578 is a wasteful number, since it uses less digits than its factorization.

7250257578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154062.

The product of its (nonzero) digits is 1372000, while the sum is 48.

The square root of 7250257578 is about 85148.4443662948. Note that the first 3 decimals coincide. The cubic root of 7250257578 is about 1935.4612407933.

The spelling of 7250257578 in words is "seven billion, two hundred fifty million, two hundred fifty-seven thousand, five hundred seventy-eight".