1025211450 has 48 divisors (see below), whose sum is σ = 2553809760. Its totient is φ = 272176320.

The previous prime is 1025211419. The next prime is 1025211463. The reversal of 1025211450 is 541125201.

It is a super-2 number, since 2×1025211450² = 2102117034422205000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18996 + ... + 49104.

It is an arithmetic number, because the mean of its divisors is an integer number (53204370).

Almost surely, 2^1025211450 is an apocalyptic number.

1025211450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1025211450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1276904880).

1025211450 is an abundant number, since it is smaller than the sum of its proper divisors (1528598310).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1025211450 is a wasteful number, since it uses less digits than its factorization.

1025211450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30351 (or 30346 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 1025211450 is about 32018.9233110672. The cubic root of 1025211450 is about 1008.3341653948.

Adding to 1025211450 its reverse (541125201), we get a palindrome (1566336651).

The spelling of 1025211450 in words is "one billion, twenty-five million, two hundred eleven thousand, four hundred fifty".