501383601 has 56 divisors (see below), whose sum is σ = 831029760. Its totient is φ = 300744576.

The previous prime is 501383587. The next prime is 501383627. The reversal of 501383601 is 106383105.

501383601 is a `hidden beast` number, since 50 + 1 + 3 + 8 + 3 + 601 = 666.

It is not a de Polignac number, because 501383601 - 2⁶ = 501383537 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (501383671) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 284160 + ... + 285918.

Almost surely, 2^501383601 is an apocalyptic number.

501383601 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

501383601 is a deficient number, since it is larger than the sum of its proper divisors (329646159).

501383601 is a wasteful number, since it uses less digits than its factorization.

501383601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1817 (or 1802 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 501383601 is about 22391.5966603545. The cubic root of 501383601 is about 794.4319616160.

The spelling of 501383601 in words is "five hundred one million, three hundred eighty-three thousand, six hundred one".