1425651551 has 8 divisors (see below), whose sum is σ = 1473885024. Its totient is φ = 1377928800.

The previous prime is 1425651511. The next prime is 1425651559. The reversal of 1425651551 is 1551565241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1425651551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1425651559) 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, 122000 + ... + 133173.

It is an arithmetic number, because the mean of its divisors is an integer number (184235628).

Almost surely, 2^1425651551 is an apocalyptic number.

1425651551 is a deficient number, since it is larger than the sum of its proper divisors (48233473).

1425651551 is a wasteful number, since it uses less digits than its factorization.

1425651551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255361.

The product of its digits is 30000, while the sum is 35.

The square root of 1425651551 is about 37757.8011939255. The cubic root of 1425651551 is about 1125.4800390223.

The spelling of 1425651551 in words is "one billion, four hundred twenty-five million, six hundred fifty-one thousand, five hundred fifty-one".