1425379550 has 24 divisors (see below), whose sum is σ = 3029950416. Its totient is φ = 488701440.

The previous prime is 1425379537. The next prime is 1425379561. The reversal of 1425379550 is 559735241.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1425379498 and 1425379507.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2035907 + ... + 2036606.

It is an arithmetic number, because the mean of its divisors is an integer number (126247934).

Almost surely, 2^1425379550 is an apocalyptic number.

1425379550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1425379550 is an abundant number, since it is smaller than the sum of its proper divisors (1604570866).

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

1425379550 is a wasteful number, since it uses less digits than its factorization.

1425379550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4072532 (or 4072527 counting only the distinct ones).

The product of its (nonzero) digits is 189000, while the sum is 41.

The square root of 1425379550 is about 37754.1991042056. The cubic root of 1425379550 is about 1125.4084574434.

The spelling of 1425379550 in words is "one billion, four hundred twenty-five million, three hundred seventy-nine thousand, five hundred fifty".