61575480 has 48 divisors (see below), whose sum is σ = 200121480. Its totient is φ = 16420032.

The previous prime is 61575467. The next prime is 61575491. The reversal of 61575480 is 8457516.

61575480 is a `hidden beast` number, since 6 + 1 + 575 + 4 + 80 = 666.

61575480 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 85162 + ... + 85881.

Almost surely, 2^61575480 is an apocalyptic number.

61575480 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

61575480 is an abundant number, since it is smaller than the sum of its proper divisors (138546000).

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

61575480 is a wasteful number, since it uses less digits than its factorization.

61575480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171060 (or 171053 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 61575480 is about 7847.0045240206. The cubic root of 61575480 is about 394.8837557849.

The spelling of 61575480 in words is "sixty-one million, five hundred seventy-five thousand, four hundred eighty".