61255359 has 20 divisors (see below), whose sum is σ = 99825000. Its totient is φ = 37123920.

The previous prime is 61255351. The next prime is 61255367. The reversal of 61255359 is 95355216.

61255359 is a `hidden beast` number, since 612 + 5 + 5 + 35 + 9 = 666.

It is an interprime number because it is at equal distance from previous prime (61255351) and next prime (61255367).

It is not a de Polignac number, because 61255359 - 2³ = 61255351 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61255351) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 33484 + ... + 35265.

It is an arithmetic number, because the mean of its divisors is an integer number (4991250).

Almost surely, 2^61255359 is an apocalyptic number.

61255359 is a deficient number, since it is larger than the sum of its proper divisors (38569641).

61255359 is a wasteful number, since it uses less digits than its factorization.

61255359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68772 (or 68763 counting only the distinct ones).

The product of its digits is 40500, while the sum is 36.

The square root of 61255359 is about 7826.5802877119. The cubic root of 61255359 is about 394.1982541293.

The spelling of 61255359 in words is "sixty-one million, two hundred fifty-five thousand, three hundred fifty-nine".