1553401198 has 4 divisors (see below), whose sum is σ = 2330101800. Its totient is φ = 776700598.

The previous prime is 1553401193. The next prime is 1553401217. The reversal of 1553401198 is 8911043551.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1553401193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 388350298 + ... + 388350301.

It is an arithmetic number, because the mean of its divisors is an integer number (582525450).

Almost surely, 2^1553401198 is an apocalyptic number.

1553401198 is a deficient number, since it is larger than the sum of its proper divisors (776700602).

1553401198 is an equidigital number, since it uses as much as digits as its factorization.

1553401198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 776700601.

The product of its (nonzero) digits is 21600, while the sum is 37.

The square root of 1553401198 is about 39413.2109577487. The cubic root of 1553401198 is about 1158.1404008649.

The spelling of 1553401198 in words is "one billion, five hundred fifty-three million, four hundred one thousand, one hundred ninety-eight".