1252432450999 has 16 divisors (see below), whose sum is σ = 1341572400000. Its totient is φ = 1165641075360.

The previous prime is 1252432450987. The next prime is 1252432451003. The reversal of 1252432450999 is 9990542342521.

It is a cyclic number.

It is not a de Polignac number, because 1252432450999 - 2¹⁷ = 1252432319927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252432450799) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1351377 + ... + 2081125.

It is an arithmetic number, because the mean of its divisors is an integer number (83848275000).

Almost surely, 2^{1252432450999} is an apocalyptic number.

1252432450999 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1252432450999 is a deficient number, since it is larger than the sum of its proper divisors (89139949001).

1252432450999 is a wasteful number, since it uses less digits than its factorization.

1252432450999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 731358.

The product of its (nonzero) digits is 6998400, while the sum is 55.

The spelling of 1252432450999 in words is "one trillion, two hundred fifty-two billion, four hundred thirty-two million, four hundred fifty thousand, nine hundred ninety-nine".