61255136 has 24 divisors (see below), whose sum is σ = 120771000. Its totient is φ = 30583168.

The previous prime is 61255133. The next prime is 61255151. The reversal of 61255136 is 63155216.

It is a junction number, because it is equal to n+sod(n) for n = 61255099 and 61255108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61255133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40115 + ... + 41613.

It is an arithmetic number, because the mean of its divisors is an integer number (5032125).

Almost surely, 2^61255136 is an apocalyptic number.

It is an amenable number.

61255136 is a deficient number, since it is larger than the sum of its proper divisors (59515864).

61255136 is a wasteful number, since it uses less digits than its factorization.

61255136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2786 (or 2778 counting only the distinct ones).

The product of its digits is 5400, while the sum is 29.

The square root of 61255136 is about 7826.5660413747. The cubic root of 61255136 is about 394.1977757694.

The spelling of 61255136 in words is "sixty-one million, two hundred fifty-five thousand, one hundred thirty-six".