245155505513 has 32 divisors (see below), whose sum is σ = 264943042560. Its totient is φ = 226016144640.

The previous prime is 245155505489. The next prime is 245155505537. The reversal of 245155505513 is 315505551542.

It is an interprime number because it is at equal distance from previous prime (245155505489) and next prime (245155505537).

It is a cyclic number.

It is not a de Polignac number, because 245155505513 - 2²⁶ = 245088396649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245155505113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 222261920 + ... + 222263022.

It is an arithmetic number, because the mean of its divisors is an integer number (8279470080).

Almost surely, 2^245155505513 is an apocalyptic number.

It is an amenable number.

245155505513 is a deficient number, since it is larger than the sum of its proper divisors (19787537047).

245155505513 is a wasteful number, since it uses less digits than its factorization.

245155505513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2357.

The product of its (nonzero) digits is 375000, while the sum is 41.

The spelling of 245155505513 in words is "two hundred forty-five billion, one hundred fifty-five million, five hundred five thousand, five hundred thirteen".