1255431252000 has 96 divisors (see below), whose sum is σ = 4112792820864. Its totient is φ = 334781664000.

The previous prime is 1255431251981. The next prime is 1255431252107. The reversal of 1255431252000 is 2521345521.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×1255431252000² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52297636 + ... + 52321635.

It is an arithmetic number, because the mean of its divisors is an integer number (42841591884).

Almost surely, 2^{1255431252000} is an apocalyptic number.

1255431252000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1255431252000 is an abundant number, since it is smaller than the sum of its proper divisors (2857361568864).

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

1255431252000 is a wasteful number, since it uses less digits than its factorization.

1255431252000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104619299 (or 104619281 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 1255431252000 its reverse (2521345521), we get a palindrome (1257952597521).

The spelling of 1255431252000 in words is "one trillion, two hundred fifty-five billion, four hundred thirty-one million, two hundred fifty-two thousand".