11401554425 has 24 divisors (see below), whose sum is σ = 14297640696. Its totient is φ = 9018736640.

The previous prime is 11401554419. The next prime is 11401554443. The reversal of 11401554425 is 52445510411.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 1705607401 + 9695947024 = 41299^2 + 98468^2 .

It is a de Polignac number, because none of the positive numbers 2^k-11401554425 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11401554391 and 11401554400.

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, 873749 + ... + 886701.

It is an arithmetic number, because the mean of its divisors is an integer number (595735029).

Almost surely, 2^11401554425 is an apocalyptic number.

It is an amenable number.

11401554425 is a deficient number, since it is larger than the sum of its proper divisors (2896086271).

11401554425 is a wasteful number, since it uses less digits than its factorization.

11401554425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13357 (or 13352 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 32.

The spelling of 11401554425 in words is "eleven billion, four hundred one million, five hundred fifty-four thousand, four hundred twenty-five".