1395297525 has 48 divisors (see below), whose sum is σ = 2457592704. Its totient is φ = 696084480.

The previous prime is 1395297523. The next prime is 1395297529. The reversal of 1395297525 is 5257925931.

1395297525 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1395297525 - 2¹ = 1395297523 is a prime.

It is a super-2 number, since 2×1395297525² = 3893710366542251250, which contains 22 as substring.

Its product of digits (850500) is a multiple of the sum of its prime factors (6750).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1395297521) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 209649 + ... + 216201.

It is an arithmetic number, because the mean of its divisors is an integer number (51199848).

Almost surely, 2^1395297525 is an apocalyptic number.

1395297525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1395297525 is a deficient number, since it is larger than the sum of its proper divisors (1062295179).

1395297525 is a wasteful number, since it uses less digits than its factorization.

1395297525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6750 (or 6745 counting only the distinct ones).

The product of its digits is 850500, while the sum is 48.

The square root of 1395297525 is about 37353.6815454648. The cubic root of 1395297525 is about 1117.4350116604.

The spelling of 1395297525 in words is "one billion, three hundred ninety-five million, two hundred ninety-seven thousand, five hundred twenty-five".