523640121054 has 32 divisors (see below), whose sum is σ = 1119864043296. Its totient is φ = 162652723200.

The previous prime is 523640121047. The next prime is 523640121061. The reversal of 523640121054 is 450121046325.

It is an interprime number because it is at equal distance from previous prime (523640121047) and next prime (523640121061).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25404187 + ... + 25424790.

It is an arithmetic number, because the mean of its divisors is an integer number (34995751353).

Almost surely, 2^523640121054 is an apocalyptic number.

523640121054 is an abundant number, since it is smaller than the sum of its proper divisors (596223922242).

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

523640121054 is a wasteful number, since it uses less digits than its factorization.

523640121054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50829100.

The product of its (nonzero) digits is 28800, while the sum is 33.

Adding to 523640121054 its reverse (450121046325), we get a palindrome (973761167379).

The spelling of 523640121054 in words is "five hundred twenty-three billion, six hundred forty million, one hundred twenty-one thousand, fifty-four".