551425445 has 4 divisors (see below), whose sum is σ = 661710540. Its totient is φ = 441140352.

The previous prime is 551425403. The next prime is 551425487. The reversal of 551425445 is 544524155.

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

It is an interprime number because it is at equal distance from previous prime (551425403) and next prime (551425487).

It can be written as a sum of positive squares in 2 ways, for example, as 95218564 + 456206881 = 9758^2 + 21359^2 .

It is a cyclic number.

It is not a de Polignac number, because 551425445 - 2¹⁰ = 551424421 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55142540 + ... + 55142549.

It is an arithmetic number, because the mean of its divisors is an integer number (165427635).

Almost surely, 2^551425445 is an apocalyptic number.

It is an amenable number.

551425445 is a deficient number, since it is larger than the sum of its proper divisors (110285095).

551425445 is a wasteful number, since it uses less digits than its factorization.

551425445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110285094.

The product of its digits is 80000, while the sum is 35.

The square root of 551425445 is about 23482.4497231443. The cubic root of 551425445 is about 820.0284766038.

The spelling of 551425445 in words is "five hundred fifty-one million, four hundred twenty-five thousand, four hundred forty-five".