1553013231 has 64 divisors (see below), whose sum is σ = 2686058496. Its totient is φ = 774547200.

The previous prime is 1553013179. The next prime is 1553013283. The reversal of 1553013231 is 1323103551.

It is an interprime number because it is at equal distance from previous prime (1553013179) and next prime (1553013283).

It is not a de Polignac number, because 1553013231 - 2⁷ = 1553013103 is a prime.

It is a super-2 number, since 2×1553013231² = 4823700191322118722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1553013031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 980266 + ... + 981848.

It is an arithmetic number, because the mean of its divisors is an integer number (41969664).

Almost surely, 2^1553013231 is an apocalyptic number.

1553013231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1553013231 is a deficient number, since it is larger than the sum of its proper divisors (1133045265).

1553013231 is a wasteful number, since it uses less digits than its factorization.

1553013231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1772.

The product of its (nonzero) digits is 1350, while the sum is 24.

The square root of 1553013231 is about 39408.2888616088. The cubic root of 1553013231 is about 1158.0439763935.

Adding to 1553013231 its reverse (1323103551), we get a palindrome (2876116782).

The spelling of 1553013231 in words is "one billion, five hundred fifty-three million, thirteen thousand, two hundred thirty-one".