61254545 has 8 divisors (see below), whose sum is σ = 80187840. Its totient is φ = 44548720.

The previous prime is 61254539. The next prime is 61254547. The reversal of 61254545 is 54545216.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61254545 - 2⁸ = 61254289 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (61254547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 556805 + ... + 556914.

It is an arithmetic number, because the mean of its divisors is an integer number (10023480).

Almost surely, 2^61254545 is an apocalyptic number.

It is an amenable number.

61254545 is a deficient number, since it is larger than the sum of its proper divisors (18933295).

61254545 is a wasteful number, since it uses less digits than its factorization.

61254545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1113735.

The product of its digits is 24000, while the sum is 32.

The square root of 61254545 is about 7826.5282852616. The cubic root of 61254545 is about 394.1965080029.

The spelling of 61254545 in words is "sixty-one million, two hundred fifty-four thousand, five hundred forty-five".