29475052489 has 9 divisors (see below), whose sum is σ = 31313969607. Its totient is φ = 27738478944.

The previous prime is 29475052471. The next prime is 29475052559. The reversal of 29475052489 is 98425057492.

It is a happy number.

The square root of 29475052489 is 171683.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 22947705225 + 6527347264 = 151485^2 + 80792^2 .

It is not a de Polignac number, because 29475052489 - 2⁵ = 29475052457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29475052459) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2913562 + ... + 2923660.

Almost surely, 2^29475052489 is an apocalyptic number.

29475052489 is the 171683-rd square number.

29475052489 is the 85842-nd centered octagonal number.

It is an amenable number.

29475052489 is a deficient number, since it is larger than the sum of its proper divisors (1838917118).

29475052489 is an frugal number, since it uses more digits than its factorization.

29475052489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20232 (or 10116 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 55.

The spelling of 29475052489 in words is "twenty-nine billion, four hundred seventy-five million, fifty-two thousand, four hundred eighty-nine".