155307425 has 48 divisors (see below), whose sum is σ = 249567360. Its totient is φ = 93104640.

The previous prime is 155307421. The next prime is 155307457. The reversal of 155307425 is 524703551.

It is not a de Polignac number, because 155307425 - 2² = 155307421 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 155307391 and 155307400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155307421) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 41429 + ... + 45021.

It is an arithmetic number, because the mean of its divisors is an integer number (5199320).

Almost surely, 2^155307425 is an apocalyptic number.

It is an amenable number.

155307425 is a deficient number, since it is larger than the sum of its proper divisors (94259935).

155307425 is a wasteful number, since it uses less digits than its factorization.

155307425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3642 (or 3637 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 32.

The square root of 155307425 is about 12462.2399671969. The cubic root of 155307425 is about 537.5234386750.

The spelling of 155307425 in words is "one hundred fifty-five million, three hundred seven thousand, four hundred twenty-five".