245505405513 has 8 divisors (see below), whose sum is σ = 327370896000. Its totient is φ = 163655092688.

The previous prime is 245505405503. The next prime is 245505405529. The reversal of 245505405513 is 315504505542.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 245505405513 - 2⁹ = 245505405001 is a prime.

It is a super-2 number, since 2×245505405513² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (245505405503) 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, 3756618 + ... + 3821411.

It is an arithmetic number, because the mean of its divisors is an integer number (40921362000).

Almost surely, 2^245505405513 is an apocalyptic number.

It is an amenable number.

245505405513 is a deficient number, since it is larger than the sum of its proper divisors (81865490487).

245505405513 is a wasteful number, since it uses less digits than its factorization.

245505405513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7588831.

The product of its (nonzero) digits is 300000, while the sum is 39.

The spelling of 245505405513 in words is "two hundred forty-five billion, five hundred five million, four hundred five thousand, five hundred thirteen".