1354721387225 has 24 divisors (see below), whose sum is σ = 1682157141600. Its totient is φ = 1082292624000.

The previous prime is 1354721387221. The next prime is 1354721387251. The reversal of 1354721387225 is 5227831274531.

It is not a de Polignac number, because 1354721387225 - 2² = 1354721387221 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1354721387221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56673326 + ... + 56697224.

It is an arithmetic number, because the mean of its divisors is an integer number (70089880900).

Almost surely, 2^{1354721387225} is an apocalyptic number.

It is an amenable number.

1354721387225 is a deficient number, since it is larger than the sum of its proper divisors (327435754375).

1354721387225 is a wasteful number, since it uses less digits than its factorization.

1354721387225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26921 (or 26916 counting only the distinct ones).

The product of its digits is 2822400, while the sum is 50.

The spelling of 1354721387225 in words is "one trillion, three hundred fifty-four billion, seven hundred twenty-one million, three hundred eighty-seven thousand, two hundred twenty-five".