1051655904 has 432 divisors, whose sum is σ = 3625824384. Its totient is φ = 287539200.

The previous prime is 1051655837. The next prime is 1051655923. The reversal of 1051655904 is 4095561501.

1051655904 is a `hidden beast` number, since 1 + 0 + 5 + 1 + 65 + 590 + 4 = 666.

It is a super-2 number, since 2×1051655904² = 2211960280836114432, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 25650124 + ... + 25650164.

It is an arithmetic number, because the mean of its divisors is an integer number (8393112).

Almost surely, 2^1051655904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1051655904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1812912192).

1051655904 is an abundant number, since it is smaller than the sum of its proper divisors (2574168480).

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

1051655904 is a wasteful number, since it uses less digits than its factorization.

1051655904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131 (or 107 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The square root of 1051655904 is about 32429.2445795458. The cubic root of 1051655904 is about 1016.9303792950.

The spelling of 1051655904 in words is "one billion, fifty-one million, six hundred fifty-five thousand, nine hundred four".