1051025505 has 16 divisors (see below), whose sum is σ = 1684609920. Its totient is φ = 559557248.

The previous prime is 1051025497. The next prime is 1051025513. The reversal of 1051025505 is 5055201501.

It is an interprime number because it is at equal distance from previous prime (1051025497) and next prime (1051025513).

It is a cyclic number.

It is not a de Polignac number, because 1051025505 - 2³ = 1051025497 is a prime.

It is a super-2 number, since 2×1051025505² = 2209309224321010050, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53037 + ... + 70106.

It is an arithmetic number, because the mean of its divisors is an integer number (105288120).

Almost surely, 2^1051025505 is an apocalyptic number.

1051025505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1051025505 is a deficient number, since it is larger than the sum of its proper divisors (633584415).

1051025505 is a wasteful number, since it uses less digits than its factorization.

1051025505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123720.

The product of its (nonzero) digits is 1250, while the sum is 24.

The square root of 1051025505 is about 32419.5235159310. The cubic root of 1051025505 is about 1016.7271442419.

The spelling of 1051025505 in words is "one billion, fifty-one million, twenty-five thousand, five hundred five".