1240530552551 has 8 divisors (see below), whose sum is σ = 1241124634800. Its totient is φ = 1239936566400.

The previous prime is 1240530552539. The next prime is 1240530552553. The reversal of 1240530552551 is 1552550350421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1240530552551 - 2¹⁸ = 1240530290407 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 (1240530552553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42613901 + ... + 42643001.

It is an arithmetic number, because the mean of its divisors is an integer number (155140579350).

Almost surely, 2^{1240530552551} is an apocalyptic number.

1240530552551 is a deficient number, since it is larger than the sum of its proper divisors (594082249).

1240530552551 is a wasteful number, since it uses less digits than its factorization.

1240530552551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48049.

The product of its (nonzero) digits is 150000, while the sum is 38.

The spelling of 1240530552551 in words is "one trillion, two hundred forty billion, five hundred thirty million, five hundred fifty-two thousand, five hundred fifty-one".