1025050257 has 72 divisors (see below), whose sum is σ = 1930061952. Its totient is φ = 518011200.

The previous prime is 1025050253. The next prime is 1025050261. The reversal of 1025050257 is 7520505201.

It is a happy number.

1025050257 is a `hidden beast` number, since 102 + 5 + 0 + 502 + 57 = 666.

It is an interprime number because it is at equal distance from previous prime (1025050253) and next prime (1025050261).

It is not a de Polignac number, because 1025050257 - 2² = 1025050253 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1025050257.

It is not an unprimeable number, because it can be changed into a prime (1025050253) 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 71 ways as a sum of consecutive naturals, for example, 176632 + ... + 182342.

It is an arithmetic number, because the mean of its divisors is an integer number (26806416).

Almost surely, 2^1025050257 is an apocalyptic number.

It is an amenable number.

1025050257 is a deficient number, since it is larger than the sum of its proper divisors (905011695).

1025050257 is a wasteful number, since it uses less digits than its factorization.

1025050257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5779 (or 5769 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 27.

The square root of 1025050257 is about 32016.4060600187. The cubic root of 1025050257 is about 1008.2813161579.

Adding to 1025050257 its reverse (7520505201), we get a palindrome (8545555458).

The spelling of 1025050257 in words is "one billion, twenty-five million, fifty thousand, two hundred fifty-seven".