63557852545 has 48 divisors (see below), whose sum is σ = 86616698112. Its totient is φ = 44381742080.

The previous prime is 63557852543. The next prime is 63557852593. The reversal of 63557852545 is 54525875536.

It is not a de Polignac number, because 63557852545 - 2¹ = 63557852543 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63557852543) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7256889 + ... + 7265641.

It is an arithmetic number, because the mean of its divisors is an integer number (1804514544).

Almost surely, 2^63557852545 is an apocalyptic number.

It is an amenable number.

63557852545 is a deficient number, since it is larger than the sum of its proper divisors (23058845567).

63557852545 is a wasteful number, since it uses less digits than its factorization.

63557852545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8922 (or 8869 counting only the distinct ones).

The product of its digits is 25200000, while the sum is 55.

The spelling of 63557852545 in words is "sixty-three billion, five hundred fifty-seven million, eight hundred fifty-two thousand, five hundred forty-five".