155325040 has 40 divisors (see below), whose sum is σ = 388912608. Its totient is φ = 57350400.

The previous prime is 155325031. The next prime is 155325041. The reversal of 155325040 is 40523551.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 155324996 and 155325014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155325041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73636 + ... + 75715.

Almost surely, 2^155325040 is an apocalyptic number.

155325040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155325040 is an abundant number, since it is smaller than the sum of its proper divisors (233587568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155325040 is a wasteful number, since it uses less digits than its factorization.

155325040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149377 (or 149371 counting only the distinct ones).

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

The square root of 155325040 is about 12462.9466820652. The cubic root of 155325040 is about 537.5437599130.

Adding to 155325040 its reverse (40523551), we get a palindrome (195848591).

The spelling of 155325040 in words is "one hundred fifty-five million, three hundred twenty-five thousand, forty".