1553042631 has 16 divisors (see below), whose sum is σ = 2395056384. Its totient is φ = 876759744.

The previous prime is 1553042609. The next prime is 1553042651. The reversal of 1553042631 is 1362403551.

It is not a de Polignac number, because 1553042631 - 2¹⁴ = 1553026247 is a prime.

It is a super-2 number, since 2×1553042631² = 4823882827406804322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1553042651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 443766 + ... + 447251.

It is an arithmetic number, because the mean of its divisors is an integer number (149691024).

Almost surely, 2^1553042631 is an apocalyptic number.

1553042631 is a deficient number, since it is larger than the sum of its proper divisors (842013753).

1553042631 is an equidigital number, since it uses as much as digits as its factorization.

1553042631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 891110.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 1553042631 is about 39408.6618778156. The cubic root of 1553042631 is about 1158.0512839676.

The spelling of 1553042631 in words is "one billion, five hundred fifty-three million, forty-two thousand, six hundred thirty-one".