725017534 has 4 divisors (see below), whose sum is σ = 1087526304. Its totient is φ = 362508766.

The previous prime is 725017511. The next prime is 725017567. The reversal of 725017534 is 435710527.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 725017534.

It is a congruent number.

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, 181254382 + ... + 181254385.

It is an arithmetic number, because the mean of its divisors is an integer number (271881576).

Almost surely, 2^725017534 is an apocalyptic number.

725017534 is a deficient number, since it is larger than the sum of its proper divisors (362508770).

725017534 is a wasteful number, since it uses less digits than its factorization.

725017534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362508769.

The product of its (nonzero) digits is 29400, while the sum is 34.

The square root of 725017534 is about 26926.1496319099. The cubic root of 725017534 is about 898.3581316669.

The spelling of 725017534 in words is "seven hundred twenty-five million, seventeen thousand, five hundred thirty-four".