51345454541502 has 64 divisors (see below), whose sum is σ = 112532781957120. Its totient is φ = 15488909186400.

The previous prime is 51345454541497. The next prime is 51345454541519. The reversal of 51345454541502 is 20514545454315.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 648597399 + ... + 648676557.

It is an arithmetic number, because the mean of its divisors is an integer number (1758324718080).

Almost surely, 2^{51345454541502} is an apocalyptic number.

51345454541502 is an abundant number, since it is smaller than the sum of its proper divisors (61187327415618).

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

51345454541502 is a wasteful number, since it uses less digits than its factorization.

51345454541502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123469.

The product of its (nonzero) digits is 4800000, while the sum is 48.

Adding to 51345454541502 its reverse (20514545454315), we get a palindrome (71859999995817).

The spelling of 51345454541502 in words is "fifty-one trillion, three hundred forty-five billion, four hundred fifty-four million, five hundred forty-one thousand, five hundred two".