55425422500520 has 16 divisors (see below), whose sum is σ = 124707200626260. Its totient is φ = 22170169000192.

The previous prime is 55425422500507. The next prime is 55425422500529. The reversal of 55425422500520 is 2500522452455.

It can be written as a sum of positive squares in 2 ways, for example, as 54654408551044 + 771013949476 = 7392862^2 + 878074^2 .

It is a super-2 number, since 2×55425422500520² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55425422500529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 692817781217 + ... + 692817781296.

Almost surely, 2^{55425422500520} is an apocalyptic number.

It is an amenable number.

55425422500520 is an abundant number, since it is smaller than the sum of its proper divisors (69281778125740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55425422500520 is a wasteful number, since it uses less digits than its factorization.

55425422500520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1385635562524 (or 1385635562520 counting only the distinct ones).

The product of its (nonzero) digits is 800000, while the sum is 41.

Adding to 55425422500520 its reverse (2500522452455), we get a palindrome (57925944952975).

The spelling of 55425422500520 in words is "fifty-five trillion, four hundred twenty-five billion, four hundred twenty-two million, five hundred thousand, five hundred twenty".