1552355242 has 4 divisors (see below), whose sum is σ = 2328532866. Its totient is φ = 776177620.

The previous prime is 1552355237. The next prime is 1552355249. The reversal of 1552355242 is 2425532551.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1488339241 + 64016001 = 38579^2 + 8001^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1552355198 and 1552355207.

It is not an unprimeable number, because it can be changed into a prime (1552355249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 388088809 + ... + 388088812.

Almost surely, 2^1552355242 is an apocalyptic number.

1552355242 is a deficient number, since it is larger than the sum of its proper divisors (776177624).

1552355242 is an equidigital number, since it uses as much as digits as its factorization.

1552355242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 776177623.

The product of its digits is 60000, while the sum is 34.

The square root of 1552355242 is about 39399.9396192431. The cubic root of 1552355242 is about 1157.8804045231.

Adding to 1552355242 its reverse (2425532551), we get a palindrome (3977887793).

The spelling of 1552355242 in words is "one billion, five hundred fifty-two million, three hundred fifty-five thousand, two hundred forty-two".