1025001026 has 64 divisors (see below), whose sum is σ = 1978587648. Its totient is φ = 387898368.

The previous prime is 1025001017. The next prime is 1025001031. The reversal of 1025001026 is 6201005201.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a junction number, because it is equal to n+sod(n) for n = 1025000995 and 1025001013.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 288356 + ... + 291888.

It is an arithmetic number, because the mean of its divisors is an integer number (30915432).

Almost surely, 2^1025001026 is an apocalyptic number.

1025001026 is a deficient number, since it is larger than the sum of its proper divisors (953586622).

1025001026 is a wasteful number, since it uses less digits than its factorization.

1025001026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3635.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 1025001026 is about 32015.6372105882. The cubic root of 1025001026 is about 1008.2651740251.

Adding to 1025001026 its reverse (6201005201), we get a palindrome (7226006227).

The spelling of 1025001026 in words is "one billion, twenty-five million, one thousand, twenty-six".