61265279 has 4 divisors (see below), whose sum is σ = 61442184. Its totient is φ = 61088376.

The previous prime is 61265273. The next prime is 61265293. The reversal of 61265279 is 97256216.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61265279 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 (61265273) 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, 87932 + ... + 88625.

It is an arithmetic number, because the mean of its divisors is an integer number (15360546).

Almost surely, 2^61265279 is an apocalyptic number.

61265279 is a deficient number, since it is larger than the sum of its proper divisors (176905).

61265279 is a wasteful number, since it uses less digits than its factorization.

61265279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176904.

The product of its digits is 45360, while the sum is 38.

The square root of 61265279 is about 7827.2139998853. The cubic root of 61265279 is about 394.2195324614.

The spelling of 61265279 in words is "sixty-one million, two hundred sixty-five thousand, two hundred seventy-nine".