1051242625 has 8 divisors (see below), whose sum is σ = 1311950952. Its totient is φ = 840994000.

The previous prime is 1051242611. The next prime is 1051242653. The reversal of 1051242625 is 5262421501.

It can be written as a sum of positive squares in 4 ways, for example, as 330803344 + 720439281 = 18188^2 + 26841^2 .

It is not a de Polignac number, because 1051242625 - 2⁵ = 1051242593 is a prime.

It is a super-2 number, since 2×1051242625² = 2210222113233781250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1051242593 and 1051242602.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4204846 + ... + 4205095.

It is an arithmetic number, because the mean of its divisors is an integer number (163993869).

Almost surely, 2^1051242625 is an apocalyptic number.

It is an amenable number.

1051242625 is a deficient number, since it is larger than the sum of its proper divisors (260708327).

1051242625 is an frugal number, since it uses more digits than its factorization.

1051242625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8409956 (or 8409946 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 1051242625 is about 32422.8719425038. The cubic root of 1051242625 is about 1016.7971509790.

The spelling of 1051242625 in words is "one billion, fifty-one million, two hundred forty-two thousand, six hundred twenty-five".