1553415853 has 4 divisors (see below), whose sum is σ = 1694635488. Its totient is φ = 1412196220.

The previous prime is 1553415841. The next prime is 1553415863. The reversal of 1553415853 is 3585143551.

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 1553415853 - 2²¹ = 1551318701 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 (1553415863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70609801 + ... + 70609822.

It is an arithmetic number, because the mean of its divisors is an integer number (423658872).

Almost surely, 2^1553415853 is an apocalyptic number.

It is an amenable number.

1553415853 is a deficient number, since it is larger than the sum of its proper divisors (141219635).

1553415853 is a wasteful number, since it uses less digits than its factorization.

1553415853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141219634.

The product of its digits is 180000, while the sum is 40.

The square root of 1553415853 is about 39413.3968721297. The cubic root of 1553415853 is about 1158.1440428720.

The spelling of 1553415853 in words is "one billion, five hundred fifty-three million, four hundred fifteen thousand, eight hundred fifty-three".