1025250051 has 16 divisors (see below), whose sum is σ = 1644512000. Its totient is φ = 555022368.

The previous prime is 1025250043. The next prime is 1025250053. The reversal of 1025250051 is 1500525201.

It is not a de Polignac number, because 1025250051 - 2³ = 1025250043 is a prime.

It is a super-2 number, since 2×1025250051² = 2102275334151005202, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1025250053) 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, 1284376 + ... + 1285173.

It is an arithmetic number, because the mean of its divisors is an integer number (102782000).

Almost surely, 2^1025250051 is an apocalyptic number.

1025250051 is a deficient number, since it is larger than the sum of its proper divisors (619261949).

1025250051 is a wasteful number, since it uses less digits than its factorization.

1025250051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2569578.

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 1025250051 is about 32019.5260895598. The cubic root of 1025250051 is about 1008.3468204163.

Adding to 1025250051 its reverse (1500525201), we get a palindrome (2525775252).

The spelling of 1025250051 in words is "one billion, twenty-five million, two hundred fifty thousand, fifty-one".