552131421 has 8 divisors (see below), whose sum is σ = 759922944. Its totient is φ = 356213760.

The previous prime is 552131401. The next prime is 552131441. The reversal of 552131421 is 124131255.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (552131401) and next prime (552131441).

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

It is not a de Polignac number, because 552131421 - 2¹¹ = 552129373 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 552131391 and 552131400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (552131401) 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, 2968356 + ... + 2968541.

It is an arithmetic number, because the mean of its divisors is an integer number (94990368).

Almost surely, 2^552131421 is an apocalyptic number.

It is an amenable number.

552131421 is a deficient number, since it is larger than the sum of its proper divisors (207791523).

552131421 is a wasteful number, since it uses less digits than its factorization.

552131421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5936931.

The product of its digits is 1200, while the sum is 24.

The square root of 552131421 is about 23497.4769071064. The cubic root of 552131421 is about 820.3782812453.

Adding to 552131421 its reverse (124131255), we get a palindrome (676262676).

The spelling of 552131421 in words is "five hundred fifty-two million, one hundred thirty-one thousand, four hundred twenty-one".