51323145042052 has 24 divisors (see below), whose sum is σ = 101815146036800. Its totient is φ = 22440889329696.

The previous prime is 51323145042049. The next prime is 51323145042067. The reversal of 51323145042052 is 25024054132315.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25973250552 + ... + 25973252527.

Almost surely, 2^{51323145042052} is an apocalyptic number.

51323145042052 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

51323145042052 is a deficient number, since it is larger than the sum of its proper divisors (50492000994748).

51323145042052 is a wasteful number, since it uses less digits than its factorization.

51323145042052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51946503115 (or 51946503113 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 37.

Adding to 51323145042052 its reverse (25024054132315), we get a palindrome (76347199174367).

The spelling of 51323145042052 in words is "fifty-one trillion, three hundred twenty-three billion, one hundred forty-five million, forty-two thousand, fifty-two".