51544001155 has 8 divisors (see below), whose sum is σ = 61929073584. Its totient is φ = 41184352800.

The previous prime is 51544001153. The next prime is 51544001161. The reversal of 51544001155 is 55110044515.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51544001155 - 2¹ = 51544001153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51544001153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6351556 + ... + 6359665.

It is an arithmetic number, because the mean of its divisors is an integer number (7741134198).

Almost surely, 2^51544001155 is an apocalyptic number.

51544001155 is a deficient number, since it is larger than the sum of its proper divisors (10385072429).

51544001155 is a wasteful number, since it uses less digits than its factorization.

51544001155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12712037.

The product of its (nonzero) digits is 10000, while the sum is 31.

The spelling of 51544001155 in words is "fifty-one billion, five hundred forty-four million, one thousand, one hundred fifty-five".