501556055545 has 64 divisors (see below), whose sum is σ = 660140845056. Its totient is φ = 364322488320.

The previous prime is 501556055543. The next prime is 501556055551. The reversal of 501556055545 is 545550655105.

It is not a de Polignac number, because 501556055545 - 2¹ = 501556055543 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 501556055495 and 501556055504.

It is not an unprimeable number, because it can be changed into a prime (501556055543) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 227255832 + ... + 227258038.

It is an arithmetic number, because the mean of its divisors is an integer number (10314700704).

Almost surely, 2^501556055545 is an apocalyptic number.

It is an amenable number.

501556055545 is a deficient number, since it is larger than the sum of its proper divisors (158584789511).

501556055545 is a wasteful number, since it uses less digits than its factorization.

501556055545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3010.

The product of its (nonzero) digits is 1875000, while the sum is 46.

The spelling of 501556055545 in words is "five hundred one billion, five hundred fifty-six million, fifty-five thousand, five hundred forty-five".