505555253001 has 24 divisors (see below), whose sum is σ = 747300798816. Its totient is φ = 329167117440.

The previous prime is 505555252987. The next prime is 505555253017. The reversal of 505555253001 is 100352555505.

505555253001 is a `hidden beast` number, since 5 + 0 + 55 + 552 + 53 + 0 + 0 + 1 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-505555253001 is a prime.

It is a super-3 number, since 3×505555253001³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (505555053001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4371361 + ... + 4485521.

It is an arithmetic number, because the mean of its divisors is an integer number (31137533284).

Almost surely, 2^505555253001 is an apocalyptic number.

It is an amenable number.

505555253001 is a deficient number, since it is larger than the sum of its proper divisors (241745545815).

505555253001 is a wasteful number, since it uses less digits than its factorization.

505555253001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125653 (or 125650 counting only the distinct ones).

The product of its (nonzero) digits is 93750, while the sum is 36.

The spelling of 505555253001 in words is "five hundred five billion, five hundred fifty-five million, two hundred fifty-three thousand, one".