1425315551 has 32 divisors (see below), whose sum is σ = 1640570880. Its totient is φ = 1226534400.

The previous prime is 1425315527. The next prime is 1425315559. The reversal of 1425315551 is 1555135241.

It is a cyclic number.

It is not a de Polignac number, because 1425315551 - 2⁶ = 1425315487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1425315559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4229255 + ... + 4229591.

It is an arithmetic number, because the mean of its divisors is an integer number (51267840).

Almost surely, 2^1425315551 is an apocalyptic number.

1425315551 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1425315551 is a deficient number, since it is larger than the sum of its proper divisors (215255329).

1425315551 is a wasteful number, since it uses less digits than its factorization.

1425315551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615.

The product of its digits is 15000, while the sum is 32.

The square root of 1425315551 is about 37753.3515200969. The cubic root of 1425315551 is about 1125.3916137206.

The spelling of 1425315551 in words is "one billion, four hundred twenty-five million, three hundred fifteen thousand, five hundred fifty-one".