1425520051 has 8 divisors (see below), whose sum is σ = 1443372224. Its totient is φ = 1407732480.

The previous prime is 1425520043. The next prime is 1425520079. The reversal of 1425520051 is 1500255241.

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 1425520051 - 2³ = 1425520043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1425519998 and 1425520025.

It is not an unprimeable number, because it can be changed into a prime (1425520081) 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, 29041 + ... + 60781.

It is an arithmetic number, because the mean of its divisors is an integer number (180421528).

Almost surely, 2^1425520051 is an apocalyptic number.

1425520051 is a deficient number, since it is larger than the sum of its proper divisors (17852173).

1425520051 is an equidigital number, since it uses as much as digits as its factorization.

1425520051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32301.

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 1425520051 is about 37756.0597917738. The cubic root of 1425520051 is about 1125.4454337511.

Adding to 1425520051 its reverse (1500255241), we get a palindrome (2925775292).

The spelling of 1425520051 in words is "one billion, four hundred twenty-five million, five hundred twenty thousand, fifty-one".