1053525421 has 16 divisors (see below), whose sum is σ = 1178695168. Its totient is φ = 935064000.

The previous prime is 1053525409. The next prime is 1053525437. The reversal of 1053525421 is 1245253501.

It is not a de Polignac number, because 1053525421 - 2¹³ = 1053517229 is a prime.

It is a super-2 number, since 2×1053525421² = 2219831625386454482, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1053525421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1053525401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54946 + ... + 71596.

It is an arithmetic number, because the mean of its divisors is an integer number (73668448).

Almost surely, 2^1053525421 is an apocalyptic number.

It is an amenable number.

1053525421 is a deficient number, since it is larger than the sum of its proper divisors (125169747).

1053525421 is a wasteful number, since it uses less digits than its factorization.

1053525421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16852.

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

The square root of 1053525421 is about 32458.0563342909. The cubic root of 1053525421 is about 1017.5326178453.

Adding to 1053525421 its reverse (1245253501), we get a palindrome (2298778922).

The spelling of 1053525421 in words is "one billion, fifty-three million, five hundred twenty-five thousand, four hundred twenty-one".