51557576138350 has 24 divisors (see below), whose sum is σ = 95984829222840. Its totient is φ = 20604162153120.

The previous prime is 51557576138339. The next prime is 51557576138399. The reversal of 51557576138350 is 5383167575515.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 471652360 + ... + 471761659.

It is an arithmetic number, because the mean of its divisors is an integer number (3999367884285).

Almost surely, 2^{51557576138350} is an apocalyptic number.

51557576138350 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51557576138350 is a deficient number, since it is larger than the sum of its proper divisors (44427253084490).

51557576138350 is a wasteful number, since it uses less digits than its factorization.

51557576138350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 943415124 (or 943415119 counting only the distinct ones).

The product of its (nonzero) digits is 66150000, while the sum is 61.

The spelling of 51557576138350 in words is "fifty-one trillion, five hundred fifty-seven billion, five hundred seventy-six million, one hundred thirty-eight thousand, three hundred fifty".