155532425 has 24 divisors (see below), whose sum is σ = 201153792. Its totient is φ = 119160000.

The previous prime is 155532389. The next prime is 155532431. The reversal of 155532425 is 524235551.

It is not a de Polignac number, because 155532425 - 2⁶ = 155532361 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 155532391 and 155532400.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 77282 + ... + 79268.

It is an arithmetic number, because the mean of its divisors is an integer number (8381408).

Almost surely, 2^155532425 is an apocalyptic number.

It is an amenable number.

155532425 is a deficient number, since it is larger than the sum of its proper divisors (45621367).

155532425 is a wasteful number, since it uses less digits than its factorization.

155532425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2129 (or 2124 counting only the distinct ones).

The product of its digits is 30000, while the sum is 32.

The square root of 155532425 is about 12471.2639696223. The cubic root of 155532425 is about 537.7828905671.

Adding to 155532425 its reverse (524235551), we get a palindrome (679767976).

The spelling of 155532425 in words is "one hundred fifty-five million, five hundred thirty-two thousand, four hundred twenty-five".