1457321725 has 24 divisors (see below), whose sum is σ = 1826883072. Its totient is φ = 1153156800.

The previous prime is 1457321707. The next prime is 1457321759. The reversal of 1457321725 is 5271237541.

It is not a de Polignac number, because 1457321725 - 2¹⁷ = 1457190653 is a prime.

It is a super-2 number, since 2×1457321725² = 4247573220313951250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 963720 + ... + 965230.

It is an arithmetic number, because the mean of its divisors is an integer number (76120128).

Almost surely, 2^1457321725 is an apocalyptic number.

It is an amenable number.

1457321725 is a deficient number, since it is larger than the sum of its proper divisors (369561347).

1457321725 is a wasteful number, since it uses less digits than its factorization.

1457321725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1917 (or 1912 counting only the distinct ones).

The product of its digits is 58800, while the sum is 37.

The square root of 1457321725 is about 38174.8834313872. The cubic root of 1457321725 is about 1133.7530795756.

The spelling of 1457321725 in words is "one billion, four hundred fifty-seven million, three hundred twenty-one thousand, seven hundred twenty-five".