725069738 has 4 divisors (see below), whose sum is σ = 1087604610. Its totient is φ = 362534868.

The previous prime is 725069717. The next prime is 725069743. The reversal of 725069738 is 837960527.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 837960527 = 139 ⋅6028493.

It can be written as a sum of positive squares in only one way, i.e., 502970329 + 222099409 = 22427^2 + 14903^2 .

It is a super-2 number, since 2×725069738² = 1051452249926777288, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 725069692 and 725069701.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 181267433 + ... + 181267436.

Almost surely, 2^725069738 is an apocalyptic number.

725069738 is a deficient number, since it is larger than the sum of its proper divisors (362534872).

725069738 is a wasteful number, since it uses less digits than its factorization.

725069738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362534871.

The product of its (nonzero) digits is 635040, while the sum is 47.

The square root of 725069738 is about 26927.1190066817. The cubic root of 725069738 is about 898.3796928753.

The spelling of 725069738 in words is "seven hundred twenty-five million, sixty-nine thousand, seven hundred thirty-eight".