1225154025 has 24 divisors (see below), whose sum is σ = 2250654560. Its totient is φ = 653415120.

The previous prime is 1225154003. The next prime is 1225154033. The reversal of 1225154025 is 5204515221.

1225154025 is a `hidden beast` number, since 1 + 2 + 251 + 5 + 402 + 5 = 666.

It is not a de Polignac number, because 1225154025 - 2⁶ = 1225153961 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 1225154025.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 906847 + ... + 908196.

Almost surely, 2^1225154025 is an apocalyptic number.

1225154025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1225154025 is a deficient number, since it is larger than the sum of its proper divisors (1025500535).

1225154025 is a wasteful number, since it uses less digits than its factorization.

1225154025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1815062 (or 1815051 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 1225154025 is about 35002.2002879819. The cubic root of 1225154025 is about 1070.0323235351.

Adding to 1225154025 its reverse (5204515221), we get a palindrome (6429669246).

The spelling of 1225154025 in words is "one billion, two hundred twenty-five million, one hundred fifty-four thousand, twenty-five".