551020545226 has 4 divisors (see below), whose sum is σ = 826530817842. Its totient is φ = 275510272612.

The previous prime is 551020545211. The next prime is 551020545287. The reversal of 551020545226 is 622545020155.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 545971732201 + 5048813025 = 738899^2 + 71055^2 .

It is a super-2 number, since 2×551020545226² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137755136305 + ... + 137755136308.

Almost surely, 2^551020545226 is an apocalyptic number.

551020545226 is a deficient number, since it is larger than the sum of its proper divisors (275510272616).

551020545226 is a wasteful number, since it uses less digits than its factorization.

551020545226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275510272615.

The product of its (nonzero) digits is 120000, while the sum is 37.

The spelling of 551020545226 in words is "five hundred fifty-one billion, twenty million, five hundred forty-five thousand, two hundred twenty-six".