245553540325520 has 80 divisors (see below), whose sum is σ = 670105182690048. Its totient is φ = 81914385646080.

The previous prime is 245553540325519. The next prime is 245553540325547. The reversal of 245553540325520 is 25523045355542.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5925499076 + ... + 5925540515.

Almost surely, 2^{245553540325520} is an apocalyptic number.

245553540325520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245553540325520 is an abundant number, since it is smaller than the sum of its proper divisors (424551642364528).

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

245553540325520 is a wasteful number, since it uses less digits than its factorization.

245553540325520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11851039648 (or 11851039642 counting only the distinct ones).

The product of its (nonzero) digits is 18000000, while the sum is 50.

The spelling of 245553540325520 in words is "two hundred forty-five trillion, five hundred fifty-three billion, five hundred forty million, three hundred twenty-five thousand, five hundred twenty".