245152002545 has 4 divisors (see below), whose sum is σ = 294182403060. Its totient is φ = 196121602032.

The previous prime is 245152002517. The next prime is 245152002553. The reversal of 245152002545 is 545200251542.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 545200251542 = 2 ⋅272600125771.

It can be written as a sum of positive squares in 2 ways, for example, as 76401935281 + 168750067264 = 276409^2 + 410792^2 .

It is a cyclic number.

It is not a de Polignac number, because 245152002545 - 2²⁰ = 245150953969 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24515200250 + ... + 24515200259.

It is an arithmetic number, because the mean of its divisors is an integer number (73545600765).

Almost surely, 2^245152002545 is an apocalyptic number.

It is an amenable number.

245152002545 is a deficient number, since it is larger than the sum of its proper divisors (49030400515).

245152002545 is an equidigital number, since it uses as much as digits as its factorization.

245152002545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49030400514.

The product of its (nonzero) digits is 80000, while the sum is 35.

The spelling of 245152002545 in words is "two hundred forty-five billion, one hundred fifty-two million, two thousand, five hundred forty-five".