505645361625 has 32 divisors (see below), whose sum is σ = 842153270400. Its totient is φ = 269434132800.

The previous prime is 505645361623. The next prime is 505645361657. The reversal of 505645361625 is 526163546505.

It is not a de Polignac number, because 505645361625 - 2¹ = 505645361623 is a prime.

It is not an unprimeable number, because it can be changed into a prime (505645361623) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 192055 + ... + 1023804.

It is an arithmetic number, because the mean of its divisors is an integer number (26317289700).

Almost surely, 2^505645361625 is an apocalyptic number.

It is an amenable number.

505645361625 is a deficient number, since it is larger than the sum of its proper divisors (336507908775).

505645361625 is a wasteful number, since it uses less digits than its factorization.

505645361625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1216986 (or 1216976 counting only the distinct ones).

The product of its (nonzero) digits is 3240000, while the sum is 48.

The spelling of 505645361625 in words is "five hundred five billion, six hundred forty-five million, three hundred sixty-one thousand, six hundred twenty-five".