61355430 has 24 divisors (see below), whose sum is σ = 159524352. Its totient is φ = 16361424.

The previous prime is 61355423. The next prime is 61355471. The reversal of 61355430 is 3455316.

61355430 is a `hidden beast` number, since 613 + 5 + 5 + 43 + 0 = 666.

61355430 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 = 61355394 and 61355403.

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, 340774 + ... + 340953.

It is an arithmetic number, because the mean of its divisors is an integer number (6646848).

Almost surely, 2^61355430 is an apocalyptic number.

61355430 is an abundant number, since it is smaller than the sum of its proper divisors (98168922).

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

61355430 is a wasteful number, since it uses less digits than its factorization.

61355430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681740 (or 681737 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 61355430 is about 7832.9707008261. The cubic root of 61355430 is about 394.4128005355.

The spelling of 61355430 in words is "sixty-one million, three hundred fifty-five thousand, four hundred thirty".