551603061 has 32 divisors (see below), whose sum is σ = 826848000. Its totient is φ = 363420864.

The previous prime is 551603033. The next prime is 551603077. The reversal of 551603061 is 160306155.

It is a happy number.

551603061 is a `hidden beast` number, since 5 + 51 + 603 + 0 + 6 + 1 = 666.

It is not a de Polignac number, because 551603061 - 2¹¹ = 551601013 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551603081) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1256280 + ... + 1256718.

It is an arithmetic number, because the mean of its divisors is an integer number (25839000).

Almost surely, 2^551603061 is an apocalyptic number.

It is an amenable number.

551603061 is a deficient number, since it is larger than the sum of its proper divisors (275244939).

551603061 is a wasteful number, since it uses less digits than its factorization.

551603061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 890 (or 884 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 551603061 is about 23486.2313068742. The cubic root of 551603061 is about 820.1165118005.

The spelling of 551603061 in words is "five hundred fifty-one million, six hundred three thousand, sixty-one".