1252510523 has 4 divisors (see below), whose sum is σ = 1366375128. Its totient is φ = 1138645920.

The previous prime is 1252510489. The next prime is 1252510531. The reversal of 1252510523 is 3250152521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1252510523 - 2¹⁰ = 1252509499 is a prime.

It is a super-2 number, since 2×1252510523² = 3137565220451467058, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1252510492 and 1252510501.

It is not an unprimeable number, because it can be changed into a prime (1252510543) 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, 56932286 + ... + 56932307.

It is an arithmetic number, because the mean of its divisors is an integer number (341593782).

Almost surely, 2^1252510523 is an apocalyptic number.

1252510523 is a deficient number, since it is larger than the sum of its proper divisors (113864605).

1252510523 is a wasteful number, since it uses less digits than its factorization.

1252510523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113864604.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 1252510523 is about 35390.8254071588. The cubic root of 1252510523 is about 1077.9380304639.

The spelling of 1252510523 in words is "one billion, two hundred fifty-two million, five hundred ten thousand, five hundred twenty-three".