501115378 has 16 divisors (see below), whose sum is σ = 780642720. Its totient is φ = 241075296.

The previous prime is 501115357. The next prime is 501115393. The reversal of 501115378 is 873511105.

It is a super-2 number, since 2×501115378² = 502233244136165768, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37723 + ... + 49246.

It is an arithmetic number, because the mean of its divisors is an integer number (48790170).

Almost surely, 2^501115378 is an apocalyptic number.

501115378 is a deficient number, since it is larger than the sum of its proper divisors (279527342).

501115378 is a wasteful number, since it uses less digits than its factorization.

501115378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87081.

The product of its (nonzero) digits is 4200, while the sum is 31.

The square root of 501115378 is about 22385.6064916723. The cubic root of 501115378 is about 794.2902717451.

The spelling of 501115378 in words is "five hundred one million, one hundred fifteen thousand, three hundred seventy-eight".