1051242553 has 4 divisors (see below), whose sum is σ = 1052039668. Its totient is φ = 1050445440.

The previous prime is 1051242551. The next prime is 1051242571. The reversal of 1051242553 is 3552421501.

1051242553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3552421501 = 353 ⋅10063517.

It can be written as a sum of positive squares in 2 ways, for example, as 653160249 + 398082304 = 25557^2 + 19952^2 .

It is a cyclic number.

It is not a de Polignac number, because 1051242553 - 2¹ = 1051242551 is a prime.

It is a super-2 number, since 2×1051242553² = 2210221810475915618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1051242551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 396576 + ... + 399217.

It is an arithmetic number, because the mean of its divisors is an integer number (263009917).

Almost surely, 2^1051242553 is an apocalyptic number.

It is an amenable number.

1051242553 is a deficient number, since it is larger than the sum of its proper divisors (797115).

1051242553 is an equidigital number, since it uses as much as digits as its factorization.

1051242553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 797114.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 1051242553 is about 32422.8708321765. The cubic root of 1051242553 is about 1016.7971277654.

The spelling of 1051242553 in words is "one billion, fifty-one million, two hundred forty-two thousand, five hundred fifty-three".