1625574801 has 16 divisors (see below), whose sum is σ = 2183811840. Its totient is φ = 1075559040.

The previous prime is 1625574763. The next prime is 1625574809. The reversal of 1625574801 is 1084755261.

It is not a de Polignac number, because 1625574801 - 2⁷ = 1625574673 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1625574801.

It is not an unprimeable number, because it can be changed into a prime (1625574809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 214981 + ... + 222413.

It is an arithmetic number, because the mean of its divisors is an integer number (136488240).

Almost surely, 2^1625574801 is an apocalyptic number.

It is an amenable number.

1625574801 is a deficient number, since it is larger than the sum of its proper divisors (558237039).

1625574801 is a wasteful number, since it uses less digits than its factorization.

1625574801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7976.

The product of its (nonzero) digits is 67200, while the sum is 39.

The square root of 1625574801 is about 40318.4176400811. The cubic root of 1625574801 is about 1175.8059479837.

The spelling of 1625574801 in words is "one billion, six hundred twenty-five million, five hundred seventy-four thousand, eight hundred one".