1554051225 has 24 divisors (see below), whose sum is σ = 2576120832. Its totient is φ = 826648000.

The previous prime is 1554051203. The next prime is 1554051227. The reversal of 1554051225 is 5221504551.

It is not a de Polignac number, because 1554051225 - 2¹³ = 1554043033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1554051192 and 1554051201.

It is not an unprimeable number, because it can be changed into a prime (1554051227) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1675 + ... + 55775.

It is an arithmetic number, because the mean of its divisors is an integer number (107338368).

Almost surely, 2^1554051225 is an apocalyptic number.

1554051225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1554051225 is a deficient number, since it is larger than the sum of its proper divisors (1022069607).

1554051225 is a wasteful number, since it uses less digits than its factorization.

1554051225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54497 (or 54492 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 30.

The square root of 1554051225 is about 39421.4564038418. The cubic root of 1554051225 is about 1158.3019211789.

Adding to 1554051225 its reverse (5221504551), we get a palindrome (6775555776).

The spelling of 1554051225 in words is "one billion, five hundred fifty-four million, fifty-one thousand, two hundred twenty-five".