1051563798 has 24 divisors (see below), whose sum is σ = 2412411768. Its totient is φ = 329902272.

The previous prime is 1051563787. The next prime is 1051563833. The reversal of 1051563798 is 8973651501.

It is a happy number.

1051563798 is a `hidden beast` number, since 1 + 0 + 5 + 1 + 5 + 637 + 9 + 8 = 666.

It is a super-2 number, since 2×1051563798² = 2211572842528369608, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1717936 + ... + 1718547.

It is an arithmetic number, because the mean of its divisors is an integer number (100517157).

Almost surely, 2^1051563798 is an apocalyptic number.

1051563798 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1051563798 is an abundant number, since it is smaller than the sum of its proper divisors (1360847970).

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

1051563798 is a wasteful number, since it uses less digits than its factorization.

1051563798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3436508 (or 3436505 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 45.

The square root of 1051563798 is about 32427.8244413652. The cubic root of 1051563798 is about 1016.9006902038.

The spelling of 1051563798 in words is "one billion, fifty-one million, five hundred sixty-three thousand, seven hundred ninety-eight".