1055015280 has 600 divisors, whose sum is σ = 4321692144. Its totient is φ = 236390400.

The previous prime is 1055015263. The next prime is 1055015287. The reversal of 1055015280 is 825105501.

1055015280 is a `hidden beast` number, since 105 + 501 + 52 + 8 + 0 = 666.

It is a super-2 number, since 2×1055015280² = 2226114482066956800, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055015287) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 25732060 + ... + 25732100.

Almost surely, 2^1055015280 is an apocalyptic number.

1055015280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1055015280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2160846072).

1055015280 is an abundant number, since it is smaller than the sum of its proper divisors (3266676864).

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

1055015280 is a wasteful number, since it uses less digits than its factorization.

1055015280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115 (or 81 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 27.

The square root of 1055015280 is about 32480.9987531172. The cubic root of 1055015280 is about 1018.0120449965.

The spelling of 1055015280 in words is "one billion, fifty-five million, fifteen thousand, two hundred eighty".