1055742251 has 8 divisors (see below), whose sum is σ = 1128514464. Its totient is φ = 985209280.

The previous prime is 1055742241. The next prime is 1055742253. The reversal of 1055742251 is 1522475501.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1055742251 is a prime.

It is a super-3 number, since 3×1055742251³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1055742253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 558836 + ... + 560721.

It is an arithmetic number, because the mean of its divisors is an integer number (141064308).

Almost surely, 2^1055742251 is an apocalyptic number.

1055742251 is a deficient number, since it is larger than the sum of its proper divisors (72772213).

1055742251 is a wasteful number, since it uses less digits than its factorization.

1055742251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1119621.

The product of its (nonzero) digits is 14000, while the sum is 32.

The square root of 1055742251 is about 32492.1875379298. The cubic root of 1055742251 is about 1018.2458158021.

The spelling of 1055742251 in words is "one billion, fifty-five million, seven hundred forty-two thousand, two hundred fifty-one".