1552540325644 has 24 divisors (see below), whose sum is σ = 3387360711168. Its totient is φ = 604885841040.

The previous prime is 1552540325641. The next prime is 1552540325683. The reversal of 1552540325644 is 4465230452551.

It is a junction number, because it is equal to n+sod(n) for n = 1552540325594 and 1552540325603.

It is not an unprimeable number, because it can be changed into a prime (1552540325641) 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, 2520357364 + ... + 2520357979.

It is an arithmetic number, because the mean of its divisors is an integer number (141140029632).

Almost surely, 2^{1552540325644} is an apocalyptic number.

1552540325644 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1552540325644 is an abundant number, since it is smaller than the sum of its proper divisors (1834820385524).

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

1552540325644 is a wasteful number, since it uses less digits than its factorization.

1552540325644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5040715365 (or 5040715363 counting only the distinct ones).

The product of its (nonzero) digits is 2880000, while the sum is 46.

The spelling of 1552540325644 in words is "one trillion, five hundred fifty-two billion, five hundred forty million, three hundred twenty-five thousand, six hundred forty-four".