61006000551 has 8 divisors (see below), whose sum is σ = 81342501360. Its totient is φ = 40670083392.

The previous prime is 61006000499. The next prime is 61006000589. The reversal of 61006000551 is 15500060016.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61006000551 - 2⁹ = 61006000039 is a prime.

It is a super-3 number, since 3×61006000551³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61006000151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 256635 + ... + 433443.

It is an arithmetic number, because the mean of its divisors is an integer number (10167812670).

Almost surely, 2^61006000551 is an apocalyptic number.

61006000551 is a deficient number, since it is larger than the sum of its proper divisors (20336500809).

61006000551 is a wasteful number, since it uses less digits than its factorization.

61006000551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291825.

The product of its (nonzero) digits is 900, while the sum is 24.

Adding to 61006000551 its reverse (15500060016), we get a palindrome (76506060567).

The spelling of 61006000551 in words is "sixty-one billion, six million, five hundred fifty-one", and thus it is an aban number.