1225414525 has 6 divisors (see below), whose sum is σ = 1519514042. Its totient is φ = 980331600.

The previous prime is 1225414513. The next prime is 1225414529. The reversal of 1225414525 is 5254145221.

It can be written as a sum of positive squares in 3 ways, for example, as 24029604 + 1201384921 = 4902^2 + 34661^2 .

It is not a de Polignac number, because 1225414525 - 2¹³ = 1225406333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225414529) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24508266 + ... + 24508315.

Almost surely, 2^1225414525 is an apocalyptic number.

It is an amenable number.

1225414525 is a deficient number, since it is larger than the sum of its proper divisors (294099517).

1225414525 is an equidigital number, since it uses as much as digits as its factorization.

1225414525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49016591 (or 49016586 counting only the distinct ones).

The product of its digits is 16000, while the sum is 31.

The square root of 1225414525 is about 35005.9212848341. The cubic root of 1225414525 is about 1070.1081571748.

Adding to 1225414525 its reverse (5254145221), we get a palindrome (6479559746).

The spelling of 1225414525 in words is "one billion, two hundred twenty-five million, four hundred fourteen thousand, five hundred twenty-five".