61071255 has 24 divisors (see below), whose sum is σ = 120979872. Its totient is φ = 27918144.

The previous prime is 61071253. The next prime is 61071281. The reversal of 61071255 is 55217016.

It is not a de Polignac number, because 61071255 - 2¹ = 61071253 is a prime.

It is a super-3 number, since 3×61071255³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61071251) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 96624 + ... + 97253.

It is an arithmetic number, because the mean of its divisors is an integer number (5040828).

Almost surely, 2^61071255 is an apocalyptic number.

61071255 is a deficient number, since it is larger than the sum of its proper divisors (59908617).

61071255 is a wasteful number, since it uses less digits than its factorization.

61071255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193895 (or 193892 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 27.

The square root of 61071255 is about 7814.8099784960. The cubic root of 61071255 is about 393.8029346822.

The spelling of 61071255 in words is "sixty-one million, seventy-one thousand, two hundred fifty-five".