1051225540 has 48 divisors (see below), whose sum is σ = 2326806720. Its totient is φ = 397837440.

The previous prime is 1051225529. The next prime is 1051225541. The reversal of 1051225540 is 455221501.

It is a super-2 number, since 2×1051225540² = 2210150271896583200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1051225541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 414075 + ... + 416605.

It is an arithmetic number, because the mean of its divisors is an integer number (48475140).

Almost surely, 2^1051225540 is an apocalyptic number.

1051225540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1051225540 is an abundant number, since it is smaller than the sum of its proper divisors (1275581180).

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

1051225540 is a wasteful number, since it uses less digits than its factorization.

1051225540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3652 (or 3650 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 1051225540 is about 32422.6084700167. The cubic root of 1051225540 is about 1016.7916425540.

The spelling of 1051225540 in words is "one billion, fifty-one million, two hundred twenty-five thousand, five hundred forty".