61506460 has 12 divisors (see below), whose sum is σ = 129163608. Its totient is φ = 24602576.

The previous prime is 61506451. The next prime is 61506461. The reversal of 61506460 is 6460516.

61506460 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61506461) 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 3 ways as a sum of consecutive naturals, for example, 1537642 + ... + 1537681.

It is an arithmetic number, because the mean of its divisors is an integer number (10763634).

Almost surely, 2^61506460 is an apocalyptic number.

It is an amenable number.

61506460 is an abundant number, since it is smaller than the sum of its proper divisors (67657148).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61506460 is a wasteful number, since it uses less digits than its factorization.

61506460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3075332 (or 3075330 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 61506460 is about 7842.6054344204. The cubic root of 61506460 is about 394.7361587949.

Adding to 61506460 its reverse (6460516), we get a palindrome (67966976).

It can be divided in two parts, 61 and 506460, that added together give a triangular number (506521 = T₁₀₀₆).

The spelling of 61506460 in words is "sixty-one million, five hundred six thousand, four hundred sixty".