1625352405 has 16 divisors (see below), whose sum is σ = 2753538624. Its totient is φ = 815863040.

The previous prime is 1625352403. The next prime is 1625352409. The reversal of 1625352405 is 5042535261.

It is not a de Polignac number, because 1625352405 - 2¹ = 1625352403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1625352401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3186711 + ... + 3187220.

It is an arithmetic number, because the mean of its divisors is an integer number (172096164).

Almost surely, 2^1625352405 is an apocalyptic number.

1625352405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1625352405 is a deficient number, since it is larger than the sum of its proper divisors (1128186219).

1625352405 is a wasteful number, since it uses less digits than its factorization.

1625352405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6373956.

The product of its (nonzero) digits is 36000, while the sum is 33.

The square root of 1625352405 is about 40315.6595506014. The cubic root of 1625352405 is about 1175.7523245997.

Adding to 1625352405 its reverse (5042535261), we get a palindrome (6667887666).

The spelling of 1625352405 in words is "one billion, six hundred twenty-five million, three hundred fifty-two thousand, four hundred five".