1625401004 has 6 divisors (see below), whose sum is σ = 2844451764. Its totient is φ = 812700500.

The previous prime is 1625400977. The next prime is 1625401013. The reversal of 1625401004 is 4001045261.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203175122 + ... + 203175129.

It is an arithmetic number, because the mean of its divisors is an integer number (474075294).

Almost surely, 2^1625401004 is an apocalyptic number.

It is an amenable number.

1625401004 is a deficient number, since it is larger than the sum of its proper divisors (1219050760).

1625401004 is a wasteful number, since it uses less digits than its factorization.

1625401004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406350255 (or 406350253 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 1625401004 is about 40316.2622771506. The cubic root of 1625401004 is about 1175.7640430466.

Adding to 1625401004 its reverse (4001045261), we get a palindrome (5626446265).

The spelling of 1625401004 in words is "one billion, six hundred twenty-five million, four hundred one thousand, four".