725273425 has 12 divisors (see below), whose sum is σ = 908246556. Its totient is φ = 574472000.

The previous prime is 725273401. The next prime is 725273473. The reversal of 725273425 is 524372527.

It can be written as a sum of positive squares in 6 ways, for example, as 101123136 + 624150289 = 10056^2 + 24983^2 .

It is not a de Polignac number, because 725273425 - 2⁹ = 725272913 is a prime.

It is a super-2 number, since 2×725273425² = 1052043082022461250, which contains 22 as substring.

It is a Duffinian number.

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, 141094 + ... + 146143.

It is an arithmetic number, because the mean of its divisors is an integer number (75687213).

Almost surely, 2^725273425 is an apocalyptic number.

It is an amenable number.

725273425 is a deficient number, since it is larger than the sum of its proper divisors (182973131).

725273425 is a wasteful number, since it uses less digits than its factorization.

725273425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287348 (or 287343 counting only the distinct ones).

The product of its digits is 117600, while the sum is 37.

The square root of 725273425 is about 26930.9009318292. The cubic root of 725273425 is about 898.4638094425.

The spelling of 725273425 in words is "seven hundred twenty-five million, two hundred seventy-three thousand, four hundred twenty-five".