172258582425 has 24 divisors (see below), whose sum is σ = 284904648864. Its totient is φ = 91837762560.

The previous prime is 172258582421. The next prime is 172258582427. The reversal of 172258582425 is 524285852271.

It is not a de Polignac number, because 172258582425 - 2² = 172258582421 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (172258582421) 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, 210667 + ... + 623616.

It is an arithmetic number, because the mean of its divisors is an integer number (11871027036).

Almost surely, 2^172258582425 is an apocalyptic number.

172258582425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

172258582425 is a deficient number, since it is larger than the sum of its proper divisors (112646066439).

172258582425 is a wasteful number, since it uses less digits than its factorization.

172258582425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 837049 (or 837044 counting only the distinct ones).

The product of its digits is 3584000, while the sum is 51.

The spelling of 172258582425 in words is "one hundred seventy-two billion, two hundred fifty-eight million, five hundred eighty-two thousand, four hundred twenty-five".