1256001054 has 96 divisors (see below), whose sum is σ = 3188118528. Its totient is φ = 322872000.

The previous prime is 1256001031. The next prime is 1256001059. The reversal of 1256001054 is 4501006521.

1256001054 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1256001054² = 3155077295298221832, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1256001059) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 512059 + ... + 514505.

It is an arithmetic number, because the mean of its divisors is an integer number (33209568).

Almost surely, 2^1256001054 is an apocalyptic number.

1256001054 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1256001054, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1594059264).

1256001054 is an abundant number, since it is smaller than the sum of its proper divisors (1932117474).

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

1256001054 is a wasteful number, since it uses less digits than its factorization.

1256001054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2582 (or 2571 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 1256001054 is about 35440.1051635009. The cubic root of 1256001054 is about 1078.9384442267.

Adding to 1256001054 its reverse (4501006521), we get a palindrome (5757007575).

The spelling of 1256001054 in words is "one billion, two hundred fifty-six million, one thousand, fifty-four".