61255005 has 32 divisors (see below), whose sum is σ = 114622464. Its totient is φ = 27349056.

The previous prime is 61254997. The next prime is 61255043. The reversal of 61255005 is 50055216.

It is not a de Polignac number, because 61255005 - 2³ = 61254997 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2269 + ... + 11298.

It is an arithmetic number, because the mean of its divisors is an integer number (3581952).

Almost surely, 2^61255005 is an apocalyptic number.

It is an amenable number.

61255005 is a deficient number, since it is larger than the sum of its proper divisors (53367459).

61255005 is a wasteful number, since it uses less digits than its factorization.

61255005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13625.

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 61255005 is about 7826.5576724381. The cubic root of 61255005 is about 394.1974947593.

The spelling of 61255005 in words is "sixty-one million, two hundred fifty-five thousand, five".