5210145444554 has 4 divisors (see below), whose sum is σ = 7815218166834. Its totient is φ = 2605072722276.

The previous prime is 5210145444533. The next prime is 5210145444557. The reversal of 5210145444554 is 4554445410125.

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., 4130759510329 + 1079385934225 = 2032427^2 + 1038935^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5210145444557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1302536361137 + ... + 1302536361140.

Almost surely, 2^{5210145444554} is an apocalyptic number.

5210145444554 is a deficient number, since it is larger than the sum of its proper divisors (2605072722280).

5210145444554 is a wasteful number, since it uses less digits than its factorization.

5210145444554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2605072722279.

The product of its (nonzero) digits is 1280000, while the sum is 44.

The spelling of 5210145444554 in words is "five trillion, two hundred ten billion, one hundred forty-five million, four hundred forty-four thousand, five hundred fifty-four".