1625404315 has 8 divisors (see below), whose sum is σ = 1957143888. Its totient is φ = 1295884320.

The previous prime is 1625404283. The next prime is 1625404427. The reversal of 1625404315 is 5134045261.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1625404315 - 2⁵ = 1625404283 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 553281 + ... + 556210.

It is an arithmetic number, because the mean of its divisors is an integer number (244642986).

Almost surely, 2^1625404315 is an apocalyptic number.

1625404315 is a deficient number, since it is larger than the sum of its proper divisors (331739573).

1625404315 is a wasteful number, since it uses less digits than its factorization.

1625404315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1109789.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 1625404315 is about 40316.3033399641. The cubic root of 1625404315 is about 1175.7648414039.

Adding to 1625404315 its reverse (5134045261), we get a palindrome (6759449576).

The spelling of 1625404315 in words is "one billion, six hundred twenty-five million, four hundred four thousand, three hundred fifteen".