501226640425 has 48 divisors (see below), whose sum is σ = 755990399232. Its totient is φ = 321804288000.

The previous prime is 501226640417. The next prime is 501226640461. The reversal of 501226640425 is 524046622105.

It is a happy number.

It is not a de Polignac number, because 501226640425 - 2³ = 501226640417 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 137700 + ... + 1010650.

It is an arithmetic number, because the mean of its divisors is an integer number (15749799984).

Almost surely, 2^501226640425 is an apocalyptic number.

It is an amenable number.

501226640425 is a deficient number, since it is larger than the sum of its proper divisors (254763758807).

501226640425 is a wasteful number, since it uses less digits than its factorization.

501226640425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 873178 (or 873173 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 37.

The spelling of 501226640425 in words is "five hundred one billion, two hundred twenty-six million, six hundred forty thousand, four hundred twenty-five".