1550103511253 has 4 divisors (see below), whose sum is σ = 1691022012288. Its totient is φ = 1409185010220.

The previous prime is 1550103511223. The next prime is 1550103511273. The reversal of 1550103511253 is 3521153010551.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1550103511253 - 2⁶ = 1550103511189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1550103511223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70459250501 + ... + 70459250522.

It is an arithmetic number, because the mean of its divisors is an integer number (422755503072).

Almost surely, 2^{1550103511253} is an apocalyptic number.

It is an amenable number.

1550103511253 is a deficient number, since it is larger than the sum of its proper divisors (140918501035).

1550103511253 is a wasteful number, since it uses less digits than its factorization.

1550103511253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140918501034.

The product of its (nonzero) digits is 11250, while the sum is 32.

The spelling of 1550103511253 in words is "one trillion, five hundred fifty billion, one hundred three million, five hundred eleven thousand, two hundred fifty-three".