1225353524 has 24 divisors (see below), whose sum is σ = 2168083008. Its totient is φ = 605937600.

The previous prime is 1225353487. The next prime is 1225353533. The reversal of 1225353524 is 4253535221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136379 + ... + 145085.

It is an arithmetic number, because the mean of its divisors is an integer number (90336792).

Almost surely, 2^1225353524 is an apocalyptic number.

It is an amenable number.

1225353524 is a deficient number, since it is larger than the sum of its proper divisors (942729484).

1225353524 is a wasteful number, since it uses less digits than its factorization.

1225353524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9095 (or 9093 counting only the distinct ones).

The product of its digits is 36000, while the sum is 32.

The square root of 1225353524 is about 35005.0499785388. The cubic root of 1225353524 is about 1070.0904002581.

Adding to 1225353524 its reverse (4253535221), we get a palindrome (5478888745).

The spelling of 1225353524 in words is "one billion, two hundred twenty-five million, three hundred fifty-three thousand, five hundred twenty-four".