725556148 has 6 divisors (see below), whose sum is σ = 1269723266. Its totient is φ = 362778072.

The previous prime is 725556119. The next prime is 725556239. The reversal of 725556148 is 841655527.

It can be written as a sum of positive squares in only one way, i.e., 372567204 + 352988944 = 19302^2 + 18788^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90694515 + ... + 90694522.

Almost surely, 2^725556148 is an apocalyptic number.

It is an amenable number.

725556148 is a deficient number, since it is larger than the sum of its proper divisors (544167118).

725556148 is a wasteful number, since it uses less digits than its factorization.

725556148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181389041 (or 181389039 counting only the distinct ones).

The product of its digits is 336000, while the sum is 43.

The square root of 725556148 is about 26936.1494649848. The cubic root of 725556148 is about 898.5805393890.

The spelling of 725556148 in words is "seven hundred twenty-five million, five hundred fifty-six thousand, one hundred forty-eight".