2530545405242 has 4 divisors (see below), whose sum is σ = 3795818107866. Its totient is φ = 1265272702620.

The previous prime is 2530545405239. The next prime is 2530545405287. The reversal of 2530545405242 is 2425045450352.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1782387873721 + 748157531521 = 1335061^2 + 864961^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2530545405242.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 632636351309 + ... + 632636351312.

Almost surely, 2^{2530545405242} is an apocalyptic number.

2530545405242 is a deficient number, since it is larger than the sum of its proper divisors (1265272702624).

2530545405242 is a wasteful number, since it uses less digits than its factorization.

2530545405242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1265272702623.

The product of its (nonzero) digits is 960000, while the sum is 41.

The spelling of 2530545405242 in words is "two trillion, five hundred thirty billion, five hundred forty-five million, four hundred five thousand, two hundred forty-two".