2506323645153 has 6 divisors (see below), whose sum is σ = 3620245265234. Its totient is φ = 1670882430096.

The previous prime is 2506323645151. The next prime is 2506323645191. The reversal of 2506323645153 is 3515463236052.

2506323645153 is a `hidden beast` number, since 2 + 5 + 0 + 632 + 3 + 6 + 4 + 5 + 1 + 5 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1545986364129 + 960337281024 = 1243377^2 + 979968^2 .

It is not a de Polignac number, because 2506323645153 - 2¹ = 2506323645151 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2506323645099 and 2506323645108.

It is not an unprimeable number, because it can be changed into a prime (2506323645151) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 139240202500 + ... + 139240202517.

Almost surely, 2^{2506323645153} is an apocalyptic number.

It is an amenable number.

2506323645153 is a deficient number, since it is larger than the sum of its proper divisors (1113921620081).

2506323645153 is a wasteful number, since it uses less digits than its factorization.

2506323645153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278480405023 (or 278480405020 counting only the distinct ones).

The product of its (nonzero) digits is 1944000, while the sum is 45.

The spelling of 2506323645153 in words is "two trillion, five hundred six billion, three hundred twenty-three million, six hundred forty-five thousand, one hundred fifty-three".