61357575229 has 4 divisors (see below), whose sum is σ = 62363437180. Its totient is φ = 60351713280.

The previous prime is 61357575221. The next prime is 61357575233. The reversal of 61357575229 is 92257575316.

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

It can be written as a sum of positive squares in 2 ways, for example, as 24233148900 + 37124426329 = 155670^2 + 192677^2 .

It is a cyclic number.

It is not a de Polignac number, because 61357575229 - 2³ = 61357575221 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 (61357575221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 502930884 + ... + 502931005.

It is an arithmetic number, because the mean of its divisors is an integer number (15590859295).

Almost surely, 2^61357575229 is an apocalyptic number.

It is an amenable number.

61357575229 is a deficient number, since it is larger than the sum of its proper divisors (1005861951).

61357575229 is a wasteful number, since it uses less digits than its factorization.

61357575229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1005861950.

The product of its digits is 3969000, while the sum is 52.

The spelling of 61357575229 in words is "sixty-one billion, three hundred fifty-seven million, five hundred seventy-five thousand, two hundred twenty-nine".