552138425 has 6 divisors (see below), whose sum is σ = 684651678. Its totient is φ = 441710720.

The previous prime is 552138421. The next prime is 552138439. The reversal of 552138425 is 524831255.

It can be written as a sum of positive squares in 3 ways, for example, as 78074896 + 474063529 = 8836^2 + 21773^2 .

It is not a de Polignac number, because 552138425 - 2² = 552138421 is a prime.

It is a super-2 number, since 2×552138425² = 609713680722961250, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (552138421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11042744 + ... + 11042793.

It is an arithmetic number, because the mean of its divisors is an integer number (114108613).

Almost surely, 2^552138425 is an apocalyptic number.

It is an amenable number.

552138425 is a deficient number, since it is larger than the sum of its proper divisors (132513253).

552138425 is a wasteful number, since it uses less digits than its factorization.

552138425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22085547 (or 22085542 counting only the distinct ones).

The product of its digits is 48000, while the sum is 35.

The square root of 552138425 is about 23497.6259439119. The cubic root of 552138425 is about 820.3817501689.

The spelling of 552138425 in words is "five hundred fifty-two million, one hundred thirty-eight thousand, four hundred twenty-five".