1025773445 has 4 divisors (see below), whose sum is σ = 1230928140. Its totient is φ = 820618752.

The previous prime is 1025773409. The next prime is 1025773513. The reversal of 1025773445 is 5443775201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 133795489 + 891977956 = 11567^2 + 29866^2 .

It is a cyclic number.

It is not a de Polignac number, because 1025773445 - 2¹⁶ = 1025707909 is a prime.

It is a super-2 number, since 2×1025773445² = 2104422320934336050, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1025773399 and 1025773408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102577340 + ... + 102577349.

It is an arithmetic number, because the mean of its divisors is an integer number (307732035).

Almost surely, 2^1025773445 is an apocalyptic number.

It is an amenable number.

1025773445 is a deficient number, since it is larger than the sum of its proper divisors (205154695).

1025773445 is an equidigital number, since it uses as much as digits as its factorization.

1025773445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205154694.

The product of its (nonzero) digits is 117600, while the sum is 38.

The square root of 1025773445 is about 32027.6980908713. The cubic root of 1025773445 is about 1008.5183795048.

The spelling of 1025773445 in words is "one billion, twenty-five million, seven hundred seventy-three thousand, four hundred forty-five".