553157881 has 16 divisors (see below), whose sum is σ = 575586000. Its totient is φ = 531180288.

The previous prime is 553157837. The next prime is 553157897. The reversal of 553157881 is 188751355.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 29160000 + 523997881 = 5400^2 + 22891^2 .

It is not a de Polignac number, because 553157881 - 2⁹ = 553157369 is a prime.

It is a super-2 number, since 2×553157881² = 611967282624820322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (553157081) 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, 1482811 + ... + 1483183.

It is an arithmetic number, because the mean of its divisors is an integer number (35974125).

Almost surely, 2^553157881 is an apocalyptic number.

It is an amenable number.

553157881 is a deficient number, since it is larger than the sum of its proper divisors (22428119).

553157881 is a wasteful number, since it uses less digits than its factorization.

553157881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 828.

The product of its digits is 168000, while the sum is 43.

The square root of 553157881 is about 23519.3086845681. The cubic root of 553157881 is about 820.8863512206.

The spelling of 553157881 in words is "five hundred fifty-three million, one hundred fifty-seven thousand, eight hundred eighty-one".