242551925 has 24 divisors (see below), whose sum is σ = 374981952. Its totient is φ = 151200000.

The previous prime is 242551877. The next prime is 242551927. The reversal of 242551925 is 529155242.

It is not a de Polignac number, because 242551925 - 2¹⁰ = 242550901 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242551927) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61076 + ... + 64925.

It is an arithmetic number, because the mean of its divisors is an integer number (15624248).

Almost surely, 2^242551925 is an apocalyptic number.

242551925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

242551925 is a deficient number, since it is larger than the sum of its proper divisors (132430027).

242551925 is a wasteful number, since it uses less digits than its factorization.

242551925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126029 (or 126024 counting only the distinct ones).

The product of its digits is 36000, while the sum is 35.

The square root of 242551925 is about 15574.0786244323. The cubic root of 242551925 is about 623.6413580206.

The spelling of 242551925 in words is "two hundred forty-two million, five hundred fifty-one thousand, nine hundred twenty-five".