7251550000 has 60 divisors (see below), whose sum is σ = 17561344752. Its totient is φ = 2900600000.

The previous prime is 7251549967. The next prime is 7251550001. The reversal of 7251550000 is 551527.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (7251550001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22516 + ... + 122515.

Almost surely, 2^7251550000 is an apocalyptic number.

It is an amenable number.

7251550000 is an abundant number, since it is smaller than the sum of its proper divisors (10309794752).

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

7251550000 is an equidigital number, since it uses as much as digits as its factorization.

7251550000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145064 (or 145038 counting only the distinct ones).

The product of its (nonzero) digits is 1750, while the sum is 25.

The square root of 7251550000 is about 85156.0332566049. The cubic root of 7251550000 is about 1935.5762382741.

The spelling of 7251550000 in words is "seven billion, two hundred fifty-one million, five hundred fifty thousand".