61252789 has 16 divisors (see below), whose sum is σ = 70761600. Its totient is φ = 52543296.

The previous prime is 61252781. The next prime is 61252817. The reversal of 61252789 is 98725216.

It is not a de Polignac number, because 61252789 - 2³ = 61252781 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61252781) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10752 + ... + 15430.

It is an arithmetic number, because the mean of its divisors is an integer number (4422600).

Almost surely, 2^61252789 is an apocalyptic number.

It is an amenable number.

61252789 is a deficient number, since it is larger than the sum of its proper divisors (9508811).

61252789 is a wasteful number, since it uses less digits than its factorization.

61252789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4764.

The product of its digits is 60480, while the sum is 40.

The square root of 61252789 is about 7826.4161018949. The cubic root of 61252789 is about 394.1927411222.

The spelling of 61252789 in words is "sixty-one million, two hundred fifty-two thousand, seven hundred eighty-nine".