551245045 has 12 divisors (see below), whose sum is σ = 716293476. Its totient is φ = 407072640.

The previous prime is 551245039. The next prime is 551245049. The reversal of 551245045 is 540542155.

It can be written as a sum of positive squares in 6 ways, for example, as 138627076 + 412617969 = 11774^2 + 20313^2 .

It is a de Polignac number, because none of the positive numbers 2^k-551245045 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 551244998 and 551245016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551245049) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 325336 + ... + 327025.

It is an arithmetic number, because the mean of its divisors is an integer number (59691123).

Almost surely, 2^551245045 is an apocalyptic number.

It is an amenable number.

551245045 is a deficient number, since it is larger than the sum of its proper divisors (165048431).

551245045 is a wasteful number, since it uses less digits than its factorization.

551245045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652392 (or 652379 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 31.

The square root of 551245045 is about 23478.6082423980. The cubic root of 551245045 is about 819.9390421670.

The spelling of 551245045 in words is "five hundred fifty-one million, two hundred forty-five thousand, forty-five".