651232506125 has 8 divisors (see below), whose sum is σ = 812738167800. Its totient is φ = 520986004800.

The previous prime is 651232506097. The next prime is 651232506137. The reversal of 651232506125 is 521605232156.

651232506125 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 219128809 + 651013377316 = 14803^2 + 806854^2 .

It is not a de Polignac number, because 651232506125 - 2¹⁰ = 651232505101 is a prime.

It is a super-3 number, since 3×651232506125³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2604929900 + ... + 2604930149.

It is an arithmetic number, because the mean of its divisors is an integer number (101592270975).

Almost surely, 2^651232506125 is an apocalyptic number.

It is an amenable number.

651232506125 is a deficient number, since it is larger than the sum of its proper divisors (161505661675).

651232506125 is an equidigital number, since it uses as much as digits as its factorization.

651232506125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5209860064 (or 5209860054 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 38.

The spelling of 651232506125 in words is "six hundred fifty-one billion, two hundred thirty-two million, five hundred six thousand, one hundred twenty-five".