61506104 has 32 divisors (see below), whose sum is σ = 126403200. Its totient is φ = 27825120.

The previous prime is 61506103. The next prime is 61506131. The reversal of 61506104 is 40160516.

It is a self number, because there is not a number n which added to its sum of digits gives 61506104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61506103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18437 + ... + 21515.

It is an arithmetic number, because the mean of its divisors is an integer number (3950100).

Almost surely, 2^61506104 is an apocalyptic number.

It is an amenable number.

61506104 is an abundant number, since it is smaller than the sum of its proper divisors (64897096).

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

61506104 is a wasteful number, since it uses less digits than its factorization.

61506104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3323 (or 3319 counting only the distinct ones).

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

The square root of 61506104 is about 7842.5827378485. The cubic root of 61506104 is about 394.7353972145.

The spelling of 61506104 in words is "sixty-one million, five hundred six thousand, one hundred four".