1252555054281 has 12 divisors (see below), whose sum is σ = 1867608970240. Its totient is φ = 808100034840.

The previous prime is 1252555054279. The next prime is 1252555054301. The reversal of 1252555054281 is 1824505552521.

It is a happy number.

1252555054281 is a `hidden beast` number, since 1 + 2 + 5 + 2 + 55 + 50 + 542 + 8 + 1 = 666.

It is not a de Polignac number, because 1252555054281 - 2¹ = 1252555054279 is a prime.

It is a super-2 number, since 2×1252555054281² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1252555054381) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2244722041 + ... + 2244722598.

Almost surely, 2^{1252555054281} is an apocalyptic number.

It is an amenable number.

1252555054281 is a deficient number, since it is larger than the sum of its proper divisors (615053915959).

1252555054281 is a wasteful number, since it uses less digits than its factorization.

1252555054281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4489444676 (or 4489444673 counting only the distinct ones).

The product of its (nonzero) digits is 800000, while the sum is 45.

The spelling of 1252555054281 in words is "one trillion, two hundred fifty-two billion, five hundred fifty-five million, fifty-four thousand, two hundred eighty-one".