1013552251 has 4 divisors (see below), whose sum is σ = 1017758104. Its totient is φ = 1009346400.

The previous prime is 1013552213. The next prime is 1013552261. The reversal of 1013552251 is 1522553101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1522553101 = 53 ⋅28727417.

It is a cyclic number.

It is not a de Polignac number, because 1013552251 - 2²¹ = 1011455099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1013552261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2102565 + ... + 2103046.

It is an arithmetic number, because the mean of its divisors is an integer number (254439526).

Almost surely, 2^1013552251 is an apocalyptic number.

1013552251 is a deficient number, since it is larger than the sum of its proper divisors (4205853).

1013552251 is an equidigital number, since it uses as much as digits as its factorization.

1013552251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4205852.

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 1013552251 is about 31836.3353889860. The cubic root of 1013552251 is about 1004.4971622144.

The spelling of 1013552251 in words is "one billion, thirteen million, five hundred fifty-two thousand, two hundred fifty-one".