1254452251525 has 48 divisors (see below), whose sum is σ = 1736826746688. Its totient is φ = 890890560000.

The previous prime is 1254452251517. The next prime is 1254452251579. The reversal of 1254452251525 is 5251522544521.

It is not a de Polignac number, because 1254452251525 - 2³ = 1254452251517 is a prime.

It is a super-2 number, since 2×1254452251525² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 58605825 + ... + 58627225.

It is an arithmetic number, because the mean of its divisors is an integer number (36183890556).

Almost surely, 2^{1254452251525} is an apocalyptic number.

It is an amenable number.

1254452251525 is a deficient number, since it is larger than the sum of its proper divisors (482374495163).

1254452251525 is a wasteful number, since it uses less digits than its factorization.

1254452251525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26422 (or 26417 counting only the distinct ones).

The product of its digits is 800000, while the sum is 43.

The spelling of 1254452251525 in words is "one trillion, two hundred fifty-four billion, four hundred fifty-two million, two hundred fifty-one thousand, five hundred twenty-five".