1625979201 has 24 divisors (see below), whose sum is σ = 2751195744. Its totient is φ = 844663680.

The previous prime is 1625979191. The next prime is 1625979239. The reversal of 1625979201 is 1029795261.

It is not a de Polignac number, because 1625979201 - 2⁶ = 1625979137 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1625979101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 501160 + ... + 504393.

It is an arithmetic number, because the mean of its divisors is an integer number (114633156).

Almost surely, 2^1625979201 is an apocalyptic number.

1625979201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1625979201 is a deficient number, since it is larger than the sum of its proper divisors (1125216543).

1625979201 is a wasteful number, since it uses less digits than its factorization.

1625979201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1005581 (or 1005574 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 42.

The square root of 1625979201 is about 40323.4324059845. The cubic root of 1625979201 is about 1175.9034430360.

The spelling of 1625979201 in words is "one billion, six hundred twenty-five million, nine hundred seventy-nine thousand, two hundred one".