61261259 has 4 divisors (see below), whose sum is σ = 63924816. Its totient is φ = 58597704.

The previous prime is 61261241. The next prime is 61261271. The reversal of 61261259 is 95216216.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 61261259 - 2⁸ = 61261003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61261219) 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, 1331744 + ... + 1331789.

It is an arithmetic number, because the mean of its divisors is an integer number (15981204).

Almost surely, 2^61261259 is an apocalyptic number.

61261259 is a deficient number, since it is larger than the sum of its proper divisors (2663557).

61261259 is a wasteful number, since it uses less digits than its factorization.

61261259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2663556.

The product of its digits is 6480, while the sum is 32.

The square root of 61261259 is about 7826.9571993208. The cubic root of 61261259 is about 394.2109098657.

The spelling of 61261259 in words is "sixty-one million, two hundred sixty-one thousand, two hundred fifty-nine".