11019418525 has 12 divisors (see below), whose sum is σ = 13771674112. Its totient is φ = 8746118640.

The previous prime is 11019418517. The next prime is 11019418537. The reversal of 11019418525 is 52581491011.

It is a happy number.

It is not a de Polignac number, because 11019418525 - 2³ = 11019418517 is a prime.

It is a super-2 number, since 2×11019418525² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1732167 + ... + 1738516.

Almost surely, 2^11019418525 is an apocalyptic number.

It is an amenable number.

11019418525 is a deficient number, since it is larger than the sum of its proper divisors (2752255587).

11019418525 is a wasteful number, since it uses less digits than its factorization.

11019418525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3470820 (or 3470815 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 37.

The spelling of 11019418525 in words is "eleven billion, nineteen million, four hundred eighteen thousand, five hundred twenty-five".