61551010 has 16 divisors (see below), whose sum is σ = 110921472. Its totient is φ = 24591600.

The previous prime is 61550989. The next prime is 61551011. The reversal of 61551010 is 1015516.

61551010 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (61551011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6805 + ... + 13015.

It is an arithmetic number, because the mean of its divisors is an integer number (6932592).

Almost surely, 2^61551010 is an apocalyptic number.

61551010 is a deficient number, since it is larger than the sum of its proper divisors (49370462).

61551010 is a wasteful number, since it uses less digits than its factorization.

61551010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7209.

The product of its (nonzero) digits is 150, while the sum is 19.

The square root of 61551010 is about 7845.4451753868. The cubic root of 61551010 is about 394.8314401240.

Adding to 61551010 its reverse (1015516), we get a palindrome (62566526).

The spelling of 61551010 in words is "sixty-one million, five hundred fifty-one thousand, ten".