61252761 has 16 divisors (see below), whose sum is σ = 83026944. Its totient is φ = 40162704.

The previous prime is 61252757. The next prime is 61252771. The reversal of 61252761 is 16725216.

61252761 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 61252761 - 2² = 61252757 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (61252771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51010 + ... + 52196.

It is an arithmetic number, because the mean of its divisors is an integer number (5189184).

Almost surely, 2^61252761 is an apocalyptic number.

It is an amenable number.

61252761 is a deficient number, since it is larger than the sum of its proper divisors (21774183).

61252761 is a wasteful number, since it uses less digits than its factorization.

61252761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1460.

The product of its digits is 5040, while the sum is 30.

The square root of 61252761 is about 7826.4143130811. The cubic root of 61252761 is about 394.1926810575.

Adding to 61252761 its reverse (16725216), we get a palindrome (77977977).

The spelling of 61252761 in words is "sixty-one million, two hundred fifty-two thousand, seven hundred sixty-one".