1025251 has 4 divisors (see below), whose sum is σ = 1035504. Its totient is φ = 1015000.

The previous prime is 1025239. The next prime is 1025257. The reversal of 1025251 is 1525201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1525201 = 101 ⋅15101.

It is a cyclic number.

It is not a de Polignac number, because 1025251 - 2¹¹ = 1023203 is a prime.

It is a super-2 number, since 2×1025251² = 2102279226002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1025257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4975 + ... + 5176.

It is an arithmetic number, because the mean of its divisors is an integer number (258876).

2^1025251 is an apocalyptic number.

1025251 is a deficient number, since it is larger than the sum of its proper divisors (10253).

1025251 is a wasteful number, since it uses less digits than its factorization.

1025251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10252.

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 1025251 is about 1012.5467890424. The cubic root of 1025251 is about 100.8347131534.

The spelling of 1025251 in words is "one million, twenty-five thousand, two hundred fifty-one".