61253965 has 8 divisors (see below), whose sum is σ = 73564128. Its totient is φ = 48963600.

The previous prime is 61253963. The next prime is 61253971. The reversal of 61253965 is 56935216.

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

It is not a de Polignac number, because 61253965 - 2¹ = 61253963 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61253963) 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, 3034 + ... + 11476.

It is an arithmetic number, because the mean of its divisors is an integer number (9195516).

Almost surely, 2^61253965 is an apocalyptic number.

It is an amenable number.

61253965 is a deficient number, since it is larger than the sum of its proper divisors (12310163).

61253965 is a wasteful number, since it uses less digits than its factorization.

61253965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9899.

The product of its digits is 48600, while the sum is 37.

The square root of 61253965 is about 7826.4912317079. The cubic root of 61253965 is about 394.1952638248.

The spelling of 61253965 in words is "sixty-one million, two hundred fifty-three thousand, nine hundred sixty-five".