1425631501 has 8 divisors (see below), whose sum is σ = 1629650880. Its totient is φ = 1221701568.

The previous prime is 1425631483. The next prime is 1425631511. The reversal of 1425631501 is 1051365241.

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

It is a cyclic number.

It is not a de Polignac number, because 1425631501 - 2⁵ = 1425631469 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1425631501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1425631511) 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, 16245 + ... + 55813.

It is an arithmetic number, because the mean of its divisors is an integer number (203706360).

Almost surely, 2^1425631501 is an apocalyptic number.

It is an amenable number.

1425631501 is a deficient number, since it is larger than the sum of its proper divisors (204019379).

1425631501 is an equidigital number, since it uses as much as digits as its factorization.

1425631501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44723.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 1425631501 is about 37757.5356849464. The cubic root of 1425631501 is about 1125.4747628428.

Adding to 1425631501 its reverse (1051365241), we get a palindrome (2476996742).

The spelling of 1425631501 in words is "one billion, four hundred twenty-five million, six hundred thirty-one thousand, five hundred one".