1553402245 has 8 divisors (see below), whose sum is σ = 1864380960. Its totient is φ = 1242522960.

The previous prime is 1553402243. The next prime is 1553402287. The reversal of 1553402245 is 5422043551.

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

It is not a de Polignac number, because 1553402245 - 2¹ = 1553402243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1553402243) 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, 15466 + ... + 57844.

It is an arithmetic number, because the mean of its divisors is an integer number (233047620).

Almost surely, 2^1553402245 is an apocalyptic number.

It is an amenable number.

1553402245 is a deficient number, since it is larger than the sum of its proper divisors (310978715).

1553402245 is an equidigital number, since it uses as much as digits as its factorization.

1553402245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49715.

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 1553402245 is about 39413.2242400948. The cubic root of 1553402245 is about 1158.1406610623.

Adding to 1553402245 its reverse (5422043551), we get a palindrome (6975445796).

The spelling of 1553402245 in words is "one billion, five hundred fifty-three million, four hundred two thousand, two hundred forty-five".