61061255 has 16 divisors (see below), whose sum is σ = 74474400. Its totient is φ = 48055680.

The previous prime is 61061249. The next prime is 61061261. The reversal of 61061255 is 55216016.

It is an interprime number because it is at equal distance from previous prime (61061249) and next prime (61061261).

It is not a de Polignac number, because 61061255 - 2¹⁰ = 61060231 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98336 + ... + 98954.

It is an arithmetic number, because the mean of its divisors is an integer number (4654650).

Almost surely, 2^61061255 is an apocalyptic number.

61061255 is a deficient number, since it is larger than the sum of its proper divisors (13413145).

61061255 is a wasteful number, since it uses less digits than its factorization.

61061255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 914.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 61061255 is about 7814.1701414802. The cubic root of 61061255 is about 393.7814393306.

It can be divided in two parts, 61061 and 255, that added together give a palindrome (61316).

The spelling of 61061255 in words is "sixty-one million, sixty-one thousand, two hundred fifty-five".