61050551 has 4 divisors (see below), whose sum is σ = 61531392. Its totient is φ = 60569712.

The previous prime is 61050547. The next prime is 61050571. The reversal of 61050551 is 15505016.

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

It is a cyclic number.

It is not a de Polignac number, because 61050551 - 2² = 61050547 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61050511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 240230 + ... + 240483.

It is an arithmetic number, because the mean of its divisors is an integer number (15382848).

Almost surely, 2^61050551 is an apocalyptic number.

61050551 is a deficient number, since it is larger than the sum of its proper divisors (480841).

61050551 is a wasteful number, since it uses less digits than its factorization.

61050551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480840.

The product of its (nonzero) digits is 750, while the sum is 23.

The square root of 61050551 is about 7813.4852018801. The cubic root of 61050551 is about 393.7584281055.

Adding to 61050551 its reverse (15505016), we get a palindrome (76555567).

The spelling of 61050551 in words is "sixty-one million, fifty thousand, five hundred fifty-one".