15395625 has 120 divisors (see below), whose sum is σ = 35088768. Its totient is φ = 6336000.

The previous prime is 15395621. The next prime is 15395629. The reversal of 15395625 is 52659351.

It is an interprime number because it is at equal distance from previous prime (15395621) and next prime (15395629).

It is not a de Polignac number, because 15395625 - 2² = 15395621 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15395625.

It is not an unprimeable number, because it can be changed into a prime (15395621) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 669364 + ... + 669386.

Almost surely, 2^15395625 is an apocalyptic number.

15395625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15395625 is an abundant number, since it is smaller than the sum of its proper divisors (19693143).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15395625 is a wasteful number, since it uses less digits than its factorization.

15395625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73 (or 55 counting only the distinct ones).

The product of its digits is 40500, while the sum is 36.

The square root of 15395625 is about 3923.7259078585. The cubic root of 15395625 is about 248.7706311853.

It can be divided in two parts, 153 and 95625, that multiplied together give a square (14630625 = 3825²).

The spelling of 15395625 in words is "fifteen million, three hundred ninety-five thousand, six hundred twenty-five".