501551413 has 8 divisors (see below), whose sum is σ = 551670336. Its totient is φ = 455954620.

The previous prime is 501551399. The next prime is 501551423. The reversal of 501551413 is 314155105.

It is a happy number.

It is not a de Polignac number, because 501551413 - 2⁹ = 501550901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501551423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187081 + ... + 189742.

It is an arithmetic number, because the mean of its divisors is an integer number (68958792).

Almost surely, 2^501551413 is an apocalyptic number.

It is an amenable number.

501551413 is a deficient number, since it is larger than the sum of its proper divisors (50118923).

501551413 is an equidigital number, since it uses as much as digits as its factorization.

501551413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376856 (or 376834 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 501551413 is about 22395.3435561949. The cubic root of 501551413 is about 794.5205832791.

The spelling of 501551413 in words is "five hundred one million, five hundred fifty-one thousand, four hundred thirteen".