273148665225 has 24 divisors (see below), whose sum is σ = 455602318752. Its totient is φ = 144390086400.

The previous prime is 273148665221. The next prime is 273148665227. The reversal of 273148665225 is 522566841372.

It is not a de Polignac number, because 273148665225 - 2² = 273148665221 is a prime.

It is a super-2 number, since 2×273148665225² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (273148665221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16106491 + ... + 16123440.

It is an arithmetic number, because the mean of its divisors is an integer number (18983429948).

Almost surely, 2^273148665225 is an apocalyptic number.

273148665225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

273148665225 is a deficient number, since it is larger than the sum of its proper divisors (182453653527).

273148665225 is a wasteful number, since it uses less digits than its factorization.

273148665225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32230057 (or 32230052 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 51.

The spelling of 273148665225 in words is "two hundred seventy-three billion, one hundred forty-eight million, six hundred sixty-five thousand, two hundred twenty-five".