61521026 has 16 divisors (see below), whose sum is σ = 107709696. Its totient is φ = 25804896.

The previous prime is 61520999. The next prime is 61521029. The reversal of 61521026 is 62012516.

61521026 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 61520992 and 61521010.

It is not an unprimeable number, because it can be changed into a prime (61521029) 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, 46091 + ... + 47406.

It is an arithmetic number, because the mean of its divisors is an integer number (6731856).

Almost surely, 2^61521026 is an apocalyptic number.

61521026 is a deficient number, since it is larger than the sum of its proper divisors (46188670).

61521026 is a wasteful number, since it uses less digits than its factorization.

61521026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93553.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 61521026 is about 7843.5340249150. The cubic root of 61521026 is about 394.7673168937.

The spelling of 61521026 in words is "sixty-one million, five hundred twenty-one thousand, twenty-six".