523400542532240 has 20 divisors (see below), whose sum is σ = 1216906261387644. Its totient is φ = 209360217012864.

The previous prime is 523400542532213. The next prime is 523400542532249. The reversal of 523400542532240 is 42235245004325.

It can be written as a sum of positive squares in 2 ways, for example, as 92761015087504 + 430639527444736 = 9631252^2 + 20751856^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (523400542532249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3271253390747 + ... + 3271253390906.

Almost surely, 2^{523400542532240} is an apocalyptic number.

It is an amenable number.

523400542532240 is an abundant number, since it is smaller than the sum of its proper divisors (693505718855404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

523400542532240 is a wasteful number, since it uses less digits than its factorization.

523400542532240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6542506781666 (or 6542506781660 counting only the distinct ones).

The product of its (nonzero) digits is 1152000, while the sum is 41.

Adding to 523400542532240 its reverse (42235245004325), we get a palindrome (565635787536565).

The spelling of 523400542532240 in words is "five hundred twenty-three trillion, four hundred billion, five hundred forty-two million, five hundred thirty-two thousand, two hundred forty".