29772513825 has 12 divisors (see below), whose sum is σ = 49223889648. Its totient is φ = 15878674000.

The previous prime is 29772513811. The next prime is 29772513917. The reversal of 29772513825 is 52831527792.

It is not a de Polignac number, because 29772513825 - 2⁶ = 29772513761 is a prime.

It is a super-2 number, since 2×29772513825² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 198483351 + ... + 198483500.

It is an arithmetic number, because the mean of its divisors is an integer number (4101990804).

Almost surely, 2^29772513825 is an apocalyptic number.

29772513825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

29772513825 is a deficient number, since it is larger than the sum of its proper divisors (19451375823).

29772513825 is a wasteful number, since it uses less digits than its factorization.

29772513825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396966864 (or 396966859 counting only the distinct ones).

The product of its digits is 2116800, while the sum is 51.

The spelling of 29772513825 in words is "twenty-nine billion, seven hundred seventy-two million, five hundred thirteen thousand, eight hundred twenty-five".