1425155633 has 4 divisors (see below), whose sum is σ = 1554715248. Its totient is φ = 1295596020.

The previous prime is 1425155621. The next prime is 1425155651. The reversal of 1425155633 is 3365515241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1425155633 - 2⁴ = 1425155617 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1425155593 and 1425155602.

It is not an unprimeable number, because it can be changed into a prime (1425155663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64779791 + ... + 64779812.

It is an arithmetic number, because the mean of its divisors is an integer number (388678812).

Almost surely, 2^1425155633 is an apocalyptic number.

It is an amenable number.

1425155633 is a deficient number, since it is larger than the sum of its proper divisors (129559615).

1425155633 is a wasteful number, since it uses less digits than its factorization.

1425155633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129559614.

The product of its digits is 54000, while the sum is 35.

The square root of 1425155633 is about 37751.2335295153. The cubic root of 1425155633 is about 1125.3495231330.

The spelling of 1425155633 in words is "one billion, four hundred twenty-five million, one hundred fifty-five thousand, six hundred thirty-three".