725020018351 has 4 divisors (see below), whose sum is σ = 725600500000. Its totient is φ = 724439536704.

The previous prime is 725020018343. The next prime is 725020018469. The reversal of 725020018351 is 153810020527.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 153810020527 = 53 ⋅2902075859.

It is a cyclic number.

It is not a de Polignac number, because 725020018351 - 2³ = 725020018343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725020015351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 290238951 + ... + 290241448.

It is an arithmetic number, because the mean of its divisors is an integer number (181400125000).

Almost surely, 2^725020018351 is an apocalyptic number.

725020018351 is a deficient number, since it is larger than the sum of its proper divisors (580481649).

725020018351 is a wasteful number, since it uses less digits than its factorization.

725020018351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580481648.

The product of its (nonzero) digits is 16800, while the sum is 34.

Adding to 725020018351 its reverse (153810020527), we get a palindrome (878830038878).

The spelling of 725020018351 in words is "seven hundred twenty-five billion, twenty million, eighteen thousand, three hundred fifty-one".