1051325553 has 8 divisors (see below), whose sum is σ = 1403042688. Its totient is φ = 700246064.

The previous prime is 1051325551. The next prime is 1051325573. The reversal of 1051325553 is 3555231501.

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 1051325553 - 2¹ = 1051325551 is a prime.

It is a super-2 number, since 2×1051325553² = 2210570836781511618, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1051325553.

It is not an unprimeable number, because it can be changed into a prime (1051325551) 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, 155550 + ... + 162167.

It is an arithmetic number, because the mean of its divisors is an integer number (175380336).

Almost surely, 2^1051325553 is an apocalyptic number.

It is an amenable number.

1051325553 is a deficient number, since it is larger than the sum of its proper divisors (351717135).

1051325553 is a wasteful number, since it uses less digits than its factorization.

1051325553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318823.

The product of its (nonzero) digits is 11250, while the sum is 30.

The square root of 1051325553 is about 32424.1507675991. The cubic root of 1051325553 is about 1016.8238871909.

It can be divided in two parts, 105132 and 5553, that added together give a triangular number (110685 = T₄₇₀).

The spelling of 1051325553 in words is "one billion, fifty-one million, three hundred twenty-five thousand, five hundred fifty-three".