1553552005 has 8 divisors (see below), whose sum is σ = 1962381600. Its totient is φ = 1177428816.

The previous prime is 1553551973. The next prime is 1553552017. The reversal of 1553552005 is 5002553551.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1553552005 - 2⁵ = 1553551973 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8176495 + ... + 8176684.

It is an arithmetic number, because the mean of its divisors is an integer number (245297700).

Almost surely, 2^1553552005 is an apocalyptic number.

It is an amenable number.

1553552005 is a deficient number, since it is larger than the sum of its proper divisors (408829595).

1553552005 is a wasteful number, since it uses less digits than its factorization.

1553552005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16353203.

The product of its (nonzero) digits is 18750, while the sum is 31.

The square root of 1553552005 is about 39415.1240642472. The cubic root of 1553552005 is about 1158.1778777743.

The spelling of 1553552005 in words is "one billion, five hundred fifty-three million, five hundred fifty-two thousand, five".