523778501452 has 48 divisors (see below), whose sum is σ = 987473958912. Its totient is φ = 242383933440.

The previous prime is 523778501447. The next prime is 523778501453. The reversal of 523778501452 is 254105877325.

It is a super-2 number, since 2×523778501452² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 523778501396 and 523778501405.

It is not an unprimeable number, because it can be changed into a prime (523778501453) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27007303 + ... + 27026689.

It is an arithmetic number, because the mean of its divisors is an integer number (20572374144).

Almost surely, 2^523778501452 is an apocalyptic number.

It is an amenable number.

523778501452 is a deficient number, since it is larger than the sum of its proper divisors (463695457460).

523778501452 is a wasteful number, since it uses less digits than its factorization.

523778501452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28918 (or 28916 counting only the distinct ones).

The product of its (nonzero) digits is 2352000, while the sum is 49.

The spelling of 523778501452 in words is "five hundred twenty-three billion, seven hundred seventy-eight million, five hundred one thousand, four hundred fifty-two".