1553045011 has 8 divisors (see below), whose sum is σ = 1775371104. Its totient is φ = 1330834560.

The previous prime is 1553044943. The next prime is 1553045051. The reversal of 1553045011 is 1105403551.

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 1553045011 - 2⁹ = 1553044499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1553045051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2091 + ... + 55771.

It is an arithmetic number, because the mean of its divisors is an integer number (221921388).

Almost surely, 2^1553045011 is an apocalyptic number.

1553045011 is a deficient number, since it is larger than the sum of its proper divisors (222326093).

1553045011 is an equidigital number, since it uses as much as digits as its factorization.

1553045011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57821.

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 1553045011 is about 39408.6920742112. The cubic root of 1553045011 is about 1158.0518755291.

Adding to 1553045011 its reverse (1105403551), we get a palindrome (2658448562).

The spelling of 1553045011 in words is "one billion, five hundred fifty-three million, forty-five thousand, eleven".