1053220525 has 24 divisors (see below), whose sum is σ = 1504348160. Its totient is φ = 716506560.

The previous prime is 1053220513. The next prime is 1053220529. The reversal of 1053220525 is 5250223501.

It is a happy number.

It is not a de Polignac number, because 1053220525 - 2¹¹ = 1053218477 is a prime.

It is a super-2 number, since 2×1053220525² = 2218546948562551250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 1053220525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1053220529) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1470 + ... + 45919.

Almost surely, 2^1053220525 is an apocalyptic number.

It is an amenable number.

1053220525 is a deficient number, since it is larger than the sum of its proper divisors (451127635).

1053220525 is a wasteful number, since it uses less digits than its factorization.

1053220525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47533 (or 47528 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 1053220525 is about 32453.3592252019. The cubic root of 1053220525 is about 1017.4344485456.

The spelling of 1053220525 in words is "one billion, fifty-three million, two hundred twenty thousand, five hundred twenty-five".